Skip to content

12 common BYOD security risks & how to mitigate each one

Summary: BYOD boosts flexibility but increases security risks like data leaks and malware. Enforce strong authentication, network segmentation, and endpoint security.

Bring-your-own-device programs have grown fast in recent years. A 2022 survey showed that over 60% of organizations allow personal devices for work tasks.

This trend highlights the many benefits of BYOD. Workers stay productive on mobile devices they already know. Companies reduce hardware expenses and expand remote work options.

Still, BYOD security issues are on the rise. Experts warn of data theft, malware infections, and other risks. These dangers of BYOD can disrupt operations and leak sensitive data. Security measures are essential when users connect BYOD devices to a company network.

Below, we look at 12 BYOD security risks and show how to mitigate them. We also share how NordLayer supports secure bring your own device initiatives with modern tools.

What does BYOD mean for modern security?

BYOD means employees use personal devices for work tasks. These devices might be smartphones, tablets, or laptops. Many companies find that this flexibility improves morale and cuts costs. Yet the convenience also brings security threats.

When people use their own hardware, administrators lose some control. Different operating systems and software versions complicate oversight.

Without a strong BYOD security policy, BYOD vulnerabilities grow. BYOD cybersecurity threats can include malicious apps, outdated software, and easy entry points for attackers. The result can be serious data loss or system disruptions.

Robust mobile device management is critical to avoid major BYOD attacks. IT teams must adopt device security tools, enforce security measures, and monitor network access. Without those steps, the risks of BYOD can quickly outweigh its benefits.

Main BYOD security risks and how to mitigate them

Effective BYOD security starts with understanding common risks employees face daily. Companies often overlook simple issues like weak passwords, making data breaches more likely. The following section covers these risks clearly and suggests easy-to-follow strategies for reducing threats. Implementing these steps strengthens your organization’s overall BYOD security.

1. Weak passwords

Weak credentials present a huge problem. Microsoft identified 44 million accounts using passwords leaked in prior breaches​. Personal and corporate data become easy targets when employees reuse simple passphrases.

Solution: Enforcing strong password policies (length, complexity, non-reuse) and multi-factor authentication (MFA) dramatically lowers risk: according to one report, MFA can block over 99.9% of account compromise attacks.

Use MFA for all logins. Require complex passwords of at least 12 characters. Encourage passphrases instead of short strings and try to use cybersecurity tools with integrated password managers.

2. Unsecured Wi-Fi networks

Open hotspots let attackers spy on private sessions. BYOD users often connect to coffee shop or airport Wi-Fi. Security risks skyrocket when employees using public Wi-Fi handle sensitive data on unprotected networks.

Solution: Train staff to avoid connecting to unknown or open Wi-Fi without protection. Encrypt internet connections using a secure VPN. This protects personal devices and helps reduce BYOD threats and vulnerabilities tied to unsafe networks.

3. Outdated operating systems

Old software invites security threats. Many personal device owners skip updates or disable auto-patching. Attackers exploit these gaps to launch BYOD attacks that target known flaws.

Solution: Push frequent updates across all BYOD devices. Enable automatic installs for operating systems, apps, and drivers. An enterprise browser can offer centralized control. Also, NordLayer’s Device Posture Security helps ensure compliance by restricting network access for devices that miss patches. This prevents out-of-date systems from weakening the organization’s defenses.

4. Malicious apps

Employees install apps for fun, productivity, or convenience. Some mobile apps harbor hidden malware. These malicious apps can harvest corporate data or disrupt device security.

Solution: Use mobile device management tools to monitor installed apps. Block high-risk apps and encourage staff to download from trusted sources. It will help reduce BYOD security risks by catching harmful software quickly.

5. Weak access controls

Weak role management grants users more privileges than they need. This raises the likelihood of accidental company data theft. If attackers seize one account, they may roam across systems containing sensitive data.

Solution: Adopt Zero-Trust principles. Segment company data and restrict resource access. Cloud firewalls allow granular permission control, which seals off critical assets. They help limit lateral movement and reduce the impact of compromised credentials.

6. Data leaks from personal storage

Workers often save company data on personal devices. Some even sync files to personal cloud storage without encryption. These habits expose BYOD security threats and heighten security concerns.

Solution: Enforce encryption of all work files stored on personal devices. Provide secure containers for personal and corporate data. Pair your cybersecurity tool with data loss prevention (DLP) software to protect data at rest and in transit. This step lowers the risk of data loss on unregulated storage sites.

7. Lost or stolen devices

Device theft is a growing concern. More than 70 million mobile devices are lost or stolen each year worldwide. This can lead to unauthorized access if the phone holds unencrypted work data.

The loss of a BYOD device can expose any data stored on it, as well as provide a potential “way in” for attackers if the device isn’t secured. A famous example is the Lifespan Health System in the U.S. which was fined $1.04 million after an unencrypted stolen laptop led to a breach of over 20,000 patients’ data.

Solution: Activate remote wipe features and strong passcode locks. Mandate immediate reporting of missing devices to IT. Quick actions can prevent major company data loss in these scenarios.

8. Shadow IT

Shadow IT arises when employees use unapproved tools or services. This might include personal messaging apps or unknown file-sharing platforms. Such unregulated usage adds security issues with BYOD and creates hidden vulnerabilities.

Solution: Create a clear BYOD security policy that addresses software usage. Educate staff about the dangers of unvetted platforms. Using an enterprise browser can also help by blocking unknown tools. Early detection keeps shadow IT from spiraling into serious BYOD security threats.

9. Social engineering attacks

Phishing and other social tricks fool people into giving up login details. Attackers often send convincing emails or messages that seem legitimate. The presence of personal devices increases this risk, since users may mix personal and work data.

Solution: Train employees to verify messages and avoid clicking unknown links. Enable spam filters and real-time domain checks. NordLayer helps block known malicious domains to stop such attacks in their tracks. But ongoing user awareness remains essential for mitigating social engineering.

10. Lack of device monitoring

Some organizations fail to track what happens on personal devices. If suspicious activity goes unseen, it can lead to larger security issues with BYOD. Attackers thrive when no one notices unusual file transfers or logins.

Solution: Deploy monitoring tools that watch for anomalies. Review logs for off-hours data transfers and repeated login failures. Many tools offer centralized oversight across multiple endpoints. Quick alerts let IT teams respond before small issues become big incidents.

11. Poor network segmentation

When every device joins the same subnet, BYOD vulnerabilities expand. One compromised device might endanger the entire corporate data set. This setup can make BYOD security threats harder to contain.

Solution: Segment networks based on role and device type. Isolate guest networks from core servers. NordLayer’s network protection platform supports micro-segmentation. This reduces the impact of a single compromised device by limiting lateral movement.

12. Incomplete offboarding

Employees may leave without losing access to corporate systems. Their accounts stay active on personal devices long after their last day. This creates ongoing BYOD security concerns, even after roles change.

For example, a former Cisco engineer has admitted to illegally accessing Cisco’s network and wiping 456 virtual machines as well as causing disruption to over 16,000 Webex Teams accounts. US prosecutors say that the tech giant needed to pay $1.4 million in additional employee time to restore and rectify the damage caused to the system, as well as issue refunds of approximately $1 million to customers impacted by the network issues.

Solution: Implement strict offboarding protocols. Revoke credentials, disable accounts, and wipe relevant apps on departure. NordLayer simplifies user management from a single dashboard. This cuts the risk of lingering access and potential data theft down the road.

Securing BYOD with NordLayer

BYOD boosts flexibility but increases security risks. NordLayer protects both personal and company devices, ensuring safe access.

Our network protection platform combines internet security, network access control, and secure connections. Your network stays safe, no matter where employees work.

Business VPN encrypts traffic and supports shared or private gateways with dedicated IPs. With 30+ global locations, teams get fast, secure access.

The platform also helps block malicious sites, risky downloads, and unwanted traffic while keeping data encrypted in transit at all times.

With Zero Trust access controls, only verified users and devices can connect. Security policies ensure only compliant devices access company resources.

NordLayer’s Enterprise Browser will add extra protection for SaaS and web apps. It blocks malicious redirects, restricts user input, and enforces security policies. It supports both managed and unmanaged (BYOD) devices, ensuring only trusted users access sensitive resources.

NordLayer’s tools make BYOD safer, but security requires regular updates, security testing, and strong authentication. Combine VPN, ZTNA, and the Enterprise Browser, and embrace BYOD with less security risks.

About NordLayer
NordLayer is an adaptive network access security solution for modern businesses – from the world’s most trusted cybersecurity brand, Nord Security.

The web has become a chaotic space where safety and trust have been compromised by cybercrime and data protection issues. Therefore, our team has a global mission to shape a more trusted and peaceful online future for people everywhere.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

Can you get hacked by opening an email? What businesses should know

Summary: Think your inbox is safe? Think again. A click on a seemingly innocent email can harm your system. Here’s how to stay safe.

Businesses rely on emails to run teams smoothly, communicate with customers, and keep managers in the loop. But what if emails go rogue? Could the next email you open infect your network with ransomware or spyware agents?

Sadly, the answer is yes. A single email can compromise an entire business network. Clicking attachments or following fake links can lead to identity theft attacks, malware infestations, data loss, and, eventually, financial damage.

Email security is a critical concern for every business. Let’s cut through the myths surrounding email phishing attacks. This article will explain everything you need to know and suggest relevant security responses.

The hidden threats linked to malicious emails

Countering email security threats demands a calm, methodical approach. Threat management starts with understanding how opening a phishing email can affect your network.

Previously, companies could easily suffer malware infection by opening a suspicious email. Mail clients lacked protection against Javascript attacks, allowing criminals to access user devices directly.

Fortunately, today’s webmail systems are more robust. It’s hard to acquire an email virus simply by opening a message. Virus scanners screen incoming mail before users click, flagging potential threats and avoiding one-click infections.

The bad news is that email security has gone underground. Attackers use subtle methods to persuade users to take risky actions. And they often succeed. Criminals could conceal a malicious payload inside a seemingly innocent email attachment. Or they could redirect readers to unprotected websites.

That’s why we call attachments “hidden threats.” Criminals use deception to create false trust. Targets need to remain vigilant and question every email they receive. Understanding what to look for is critically important.

The most common types of malicious email attachments

Attackers can attach almost any file type to a phishing email. However, not all file types carry the same threat level. Some are harder to detect than others. Let’s run through some common email phishing attacks and explain how they work.

Executable files: The most dangerous attachments

Executable file extensions like .bat, .exe, .com, and .bin are at the top of the email phishing food chain. They should be your top priority when designing email security strategies.

The reason is that executable files automatically launch code when users open them. There are no intermediate steps or additional user actions. Malware executes, embeds itself on the victim’s device, and starts to spread. The user often does not know that the attack is underway.

Executables also routinely evade email security filters, appearing legitimate to casual readers. But one click can lead to severe security consequences.

Infected documents and PDFs

Office documents (such as docx, doc, .xls, or .xlsx) are also attractive vectors for phishing email attacks, but for a slightly different reason. Attackers can seed documents with malicious scripts or macros.

Normally, macros are tools that save time and automate complex processes. However, criminals can use them to execute malware inside applications.

Using documents has some critical advantages. Spreadsheets, PDFs, or Word files are familiar to office workers. Employees might mistake malicious attachments for client contracts, invoices, or strategic documents.

Attackers also improve their chances of success via urgent language. Emails urge recipients to open the document or risk damaging consequences. That’s all superficial. The real consequences materialize after the malicious macro executes.

PDFs play a similar role. In this case, attackers can seed documents with Javascript scripts. However, PDFs have another benefit: attackers can embed links within the PDF attachment, sending targets to fake websites where criminals harvest personal information.

Hidden malware in compressed files

Compressed file formats include .rar and .zip extensions. We commonly use both formats to transfer large files efficiently, but both file formats can become threat vectors.

Compressed files could hold anything. Without opening the file, recipients have no idea whether the content is legitimate or malicious. Intelligent attackers disguise compressed formats as valuable documents or applications, the kind of files targets may need to open. When they do so, the malware executes automatically.

Archives have another benefit: attackers can add password protection. Password protection blocks antivirus software and suggests to victims that the file is authentic – even if that is far from true.

File extension tricks attackers use

Another thing to remember is that appearances are often deceptive when dealing with email attachments. Attackers can use file masking to disguise the nature of attachments and make identifying them harder.

Images and video files are common examples. Recipients may think the attachment is a standard .jpg image. Clever attackers link the image to the target’s personal or professional life. It could be a real estate portfolio or a product listing – at least on the surface. However, a malicious executable lies beneath the surface.

 

Why deceptive emails fool even careful employees

There are many ways to deceive targets with a phishing email, from PDFs to camouflaged images. But here’s the critical point: any employee can open a suspicious email or download an attachment they should avoid. Nobody is immune. That’s why phishing is such a persistent security issue.

Phishers play on human nature. They mimic legitimate communications from trusted entities, like banks or corporate partners we deal with daily. They prompt rash actions by using an urgent tone and creating false fears. And they use techniques like spoofing and masking to create a veneer of authenticity.

The most sophisticated phishers take these techniques even further. They research their victims and adopt familiar styles of address. They leverage personal information purchased on the Dark Web to profile targets and fine-tune their email content.

Drive-by downloads heighten risks still further. These downloads occur almost invisibly. Victims visit compromised websites via links that appear innocent. No amount of cybersecurity training can prevent infections that occur in the background, without any initial symptoms.

Email security: Preventing hacks and viruses

Hidden threats and devious phishing attacks may seem intimidating but don’t panic. While you could get hacked by clicking a single email, you probably won’t if you adopt email security best practices.

Adopt a strict policy on opening attachments

Treat all email attachments as suspicious by default unless you have requested the file. This policy applies even to attachments from colleagues or trusted partners.

If you receive an unrequested attachment, don’t open it. Ask the sender for verification that the attachment is genuine and what it contains.

Update your PDF reader

PDF attachments are far more dangerous if your reader is out of date. Attackers leverage exploits in older versions while developers plug security gaps with each iteration. Update your reader regularly, preferably as soon as new versions become available.

If possible, upgrade to more secure PDF software. Sophisticated readers include sandboxing to contain potential threats and file validation to screen for malware.

Patch your browser and email client

The same applies to updating your web browser and email application (if you use one). Any web-facing tool may contain exploits or backdoors for malware infection. Regular updates neutralize recently identified vulnerabilities.

Scan emails for viruses and malware

Don’t rely on security tools provided by email services. Scan every incoming attachment with dependable antivirus software that leverages global threat databases. Robust antivirus defenses defend your network edge when other systems fail. Your wider network should remain safe, even if you click on a dangerous file.

Understand how to identify phishing links

Remember: attachments aren’t the only email security threat. Clicking a phishing link can also lead to malware infection or the exposure of personal information. Training employees to avoid fake websites is critically important.

Fake links tend to have convincing anchor text but deceptive URLs. For instance, URLs contain subtle deviations from legitimate versions. Fake websites also tend to contain errors or factual mistakes (such as false tax numbers).

How can NordLayer help

Companies are not alone when dealing with malicious attachments and links. NordLayer’s expertise can help you screen every email before cyber-attacks occur.

Our Download Protection scans every attachment automatically using advanced NordVPN Threat Protection technology. Our solution detects and removes malware instantly before it infects your system. It also gives you an overview of scanned files and allows you to track malicious activity.

Download Protection integrates seamlessly with other NordLayer security tools, adding another essential line of defense.

NordLayer’s Web Protection safeguards your business by blocking access to scam, phishing, and malicious websites. If a user inadvertently clicks on a phishing link, our system will intercept and prevent the connection, protecting your organization from potential security threats.

Ease your email attachment anxiety. Contact the NordLayer team and book a demo to find a security solution for your team.

Frequently asked questions

Can you get a virus from opening an email?

Yes. Malware can execute directly from an email via malicious scripts. However, this is unlikely with proper security measures. Infection via attachments and malicious links is much more common.

Is it safe to reply to an unknown email?

Yes, but you should always exercise caution. Phishers may engage you in conversation to build trust and deliver malware. Ask senders to verify their identities before proceeding. If they cannot do this, end the conversation and report the phishing email.

Never open attachments from unknown senders, and avoid following links in emails from strange contacts. Always ask who has sent the message, what they want, and whether they are who they claim to be.

What to do if you click on a phishing link?

Firstly, don’t panic. If a download prompt appears, decline the transfer. Don’t interact with any forms or links on the phishing website. Leave the site as quickly as possible.

To be safe, disconnect your device from the internet and run a system scan. You may want to change critical passwords (a good security practice anyway). And report the fake website to Google.

 

About NordLayer
NordLayer is an adaptive network access security solution for modern businesses – from the world’s most trusted cybersecurity brand, Nord Security.

The web has become a chaotic space where safety and trust have been compromised by cybercrime and data protection issues. Therefore, our team has a global mission to shape a more trusted and peaceful online future for people everywhere.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

7 Data Loss Prevention best practices

 

Summary: Cyber threats, compliance demands, and costly breaches make Data Loss Prevention (DLP) a must-have. Learn how to stop data leaks before they happen.

As businesses rely more on digital tools and cloud-based SaaS platforms, keeping sensitive data safe is more important than ever. Cyber threats are evolving at breakneck speed, regulations like GDPR and HIPAA are getting stricter, and data breaches are now hitting the bottom line harder than ever before. Traditional Data Loss Prevention measures (DLP) in consumer browsers don’t cut it anymore.

That’s where enterprise browsers come in. Built with security in mind, they offer stronger DLP capabilities to protect your confidential data.

In this blog, we’ll share simple tips to build a strong DLP strategy. You’ll also learn how enterprise browsers with network security solutions can keep your most valuable assets safe.

Key takeaways

  • DLP includes strategies and tools that protect sensitive data safe from unauthorized access. These tools also help businesses meet regulations like HIPAA, GDPR, and PCI DSS and support SOC 2 compliance.
  • Data loss can happen due to human error, insider threats, cyber-attacks, or hardware failures. By understanding these risks, businesses can take steps to protect their critical data.
  • DLP tools like encryption, access control, and backups ensure data stays secure.
  • Best practices for DLP include setting clear policies, using advanced technology, and maintaining constant monitoring.

What is data loss prevention?

Data breaches are becoming more costly and harder to manage. In 2024, the global average cost of a data breach hit a record $4.88 million, up 10% from the year before. According to Statista, the healthcare sector took the biggest hit, with an average cost of $9.77 million per breach, while the financial sector followed at $6.08 million.

To combat these rising costs and risks, businesses need robust data protection measures in place. Data Loss Prevention (DLP) is about protecting digital information from loss, theft, or unauthorized access. It ensures data stays private, accurate, and available while helping businesses comply with security regulations like HIPAA for healthcare data or PCI DSS for payment card information.

Key measures include encryption, which secures data so only authorized users can access it, and access controls, which restrict who can view or modify sensitive information. Backup and recovery solutions help restore lost data, while data masking hides confidential details. By implementing these practices, organizations can prevent breaches, protect customer trust, and comply with industry regulations.

Common causes of data loss

Data loss occurs when important information is deleted or corrupted. Some causes are more common than others, and each requires specific prevention measures. Understanding these threats helps businesses protect their data.

 

Human error

Mistakes happen, and human error is one of the main reasons data is lost. For example, accidentally deleting files, entering the wrong information, or mishandling sensitive data can lead to serious problems. In fact, IBM’s Cost of a Data Breach Report 2024 found that human error is behind up to 95% of cybersecurity breaches.

While checking entries twice and limiting access to important files can help, these methods depend on manual actions and still leave room for error. To lower the risk of data loss, businesses should use automated security policies and tools that centralize data protection.

Data Loss Prevention (DLP) strategies, whether through enterprise browsers or other solutions, enforce security policies across all users, reducing errors and ensuring consistent protection. Regular training and clear data-handling procedures further support a strong culture of security.

Insider threats

Insider threats come from employees or trusted individuals with access to sensitive data. Sometimes, mistakes, like sending an email to the wrong person, cause data security incidents. Other times, disgruntled employees may intentionally steal or expose information. The IBM report also states that insider threats account for 34% of data leaks.

Strict access controls and user activity monitoring can help. Government agencies, like the U.S. Department of Defense, use advanced monitoring to prevent insider threats. While most businesses don’t need military-level security, they should still take insider risks seriously.

Cyber-attacks

Cybercriminals use malware, ransomware, and phishing attacks to steal or damage data. IBM X-Force data shows that malware deployment was the most common attack method in 2024, making up 43% of incidents. Ransomware accounted for 20%, while backdoors and crypto miners were found in 6% and 5% of cases, respectively.

Strong cybersecurity measures—such as firewalls, antivirus software, and employee training, are crucial for protection. But in web-based SaaS environments, enterprise browsers add an extra layer of defense. They help protect against threats like malware, ransomware, and phishing by using centrally managed security policies, access controls, and other built-in functionalities. This works alongside traditional security measures to keep your systems safe.

Hardware failures

Storage devices can fail, causing data loss. A server crash, hard drive failure, or power surge can make critical data inaccessible. While less common, hardware failures can be devastating.

Regular backups and redundant storage solutions help prevent permanent data loss. Think of it as having a spare tire ready in case of a flat.

Natural disasters

Floods, earthquakes, and fires can destroy physical storage devices. For example, Hurricane Sandy in 2012 caused widespread data loss for businesses.

While natural disasters can’t be prevented, businesses can prepare. Off-site backups and cloud storage solutions keep data safe and accessible, even if disaster strikes.

 

Why Data Loss Prevention matters to your business

As businesses rely more on digital tools, data flows across various devices, cloud services, and networks, creating a “borderless” environment. This is further complicated by:

  • Hybrid work models
  • Bring Your Own Device (BYOD) policies
  • Increased use of contractors
  • The rapid growth of web-based SaaS apps

These factors introduce new risks, making it harder to track and protect sensitive data. Without strong security measures, your data could be exposed, stolen, or misused.

Data Loss Prevention (DLP) helps businesses secure their most valuable information, including customer data, financial records, and intellectual property. DLP also ensures compliance with regulations and helps prevent costly data breaches caused by accidental leaks or cyber threats.

As this environment grows more complex, traditional security measures are often no longer enough. A tailored approach, especially within web-based SaaS environments, is critical to safeguarding your data effectively.

Do you know where your sensitive data is?

In modern work environments, traditional DLP methods are no longer enough, especially as more people use their own devices (BYOD) and rely on web-based SaaS apps.

Why is DLP critical? Because it helps businesses gain full visibility into how data flows across their network. It allows IT and security teams to monitor and enforce policies, preventing unauthorized sharing of sensitive information like customer records and financial details.

Enterprise browsers provide a more granular solution. They track data flow within the browser in real time. This allows IT and security teams to block the unauthorized sharing of sensitive information, whether employees are using corporate or personal devices.

With granular access and centralized security policy control, businesses can create stronger, more flexible security rules to protect their most valuable assets.

Employees can also put data at risk, not only external threats

Most companies focus on external cyber threats but overlook insider risks, employees, or partners who unintentionally or intentionally expose sensitive data. According to Verizon’s Data Breach Investigations Report, 28% of breaches involve insiders.

Traditional Data Loss Prevention (DLP) tools have primarily focused on preventing accidental data leaks. They do this by blocking sensitive files from being shared through unsecured channels like USB drives or personal email accounts. These tools also detect unusual activity and restrict access to prevent data theft. If a security incident occurs, traditional DLP can quarantine or encrypt the data to protect against exposure.

Enterprise browsers take DLP a step further by offering a more granular, real-time approach. This is especially useful in today’s web-focused environments. With centrally managed security policies, enterprise browsers can implement DLP controls directly within the browser, addressing data risks at the source.

This includes features like:

  • Copy/paste restrictions to prevent unauthorized data transfer
  • Download limitations to control sensitive file movement
  • Real-time monitoring to spot and block risky behavior instantly

By using these advanced controls, businesses can protect data more effectively and prevent accidental or intentional leaks.

The cost of a data breach is higher than you think

A single data breach can lead to financial penalties, reputational damage, lost customers, and legal consequences. According to IBM’s Cost of a Data Breach Report 2024, on average, it takes 191 days to detect a breach, giving hackers plenty of time to steal valuable information.

DLP minimizes this risk by enforcing strict security policies, reducing the chances of a costly data breach. Organizations that protect their data avoid regulatory fines, lawsuits, and the financial impact of lost business.

 

Stay compliant and avoid costly fines

Regulations like GDPR, HIPAA, and PCI DSS require businesses to implement strict data protection measures. Non-compliance can lead to fines of up to 4% of global annual revenue or restrictions on business operations.

DLP helps businesses meet compliance requirements with built-in policy templates and reporting tools. It simplifies audits and ensures sensitive data is protected according to industry standards.

Secure data across all devices, including BYOD and IoT

With employees using personal devices, data moves beyond traditional networks. Add IoT into the mix, and the security challenges grow even more complex. That’s why businesses need to adopt BYOD security practices, such as DLP.

DLP, according to security policy, monitors and protects sensitive data across all devices, whether it’s being accessed, stored, or transmitted. By working alongside other security measures, DLP helps businesses prevent unauthorized data sharing and reduce security risks in an increasingly mobile world.

Take control of your data before it’s too late

Data protection isn’t just about avoiding breaches. It’s about maintaining trust, staying compliant, and keeping your business secure. Implementing a strong DLP strategy gives your organization the tools to prevent data loss, control sensitive information, and stay ahead of advanced threats.

Top 7 best practices for data loss prevention

Implementing a Data Loss Prevention solution combines cybersecurity best practices with advanced technology to protect sensitive information. DLP solutions typically focus on four key areas:

  • Prevention: Monitors data in real-time and blocks unauthorized access or suspicious activity
  • Detection: Identifies unusual behavior and improves data visibility to catch potential threats early
  • Response: Tracks and reports data access and movement to streamline incident response
  • Analysis: Helps security teams understand high-risk activity and improve future protection strategies

DLP gives businesses real-time visibility and control, helping safeguard data, reduce risks, and stay compliant. To learn more, download our free PDF on best practices for data loss prevention.

 

Step 1: Conduct a data inventory & risk assessment

Start by identifying and classifying all sensitive data within your organization. Determine where the data is stored, how it moves, and who can access it. Conduct a thorough risk assessment to understand potential vulnerabilities and threats.

Use data discovery software to automate this process. By gaining insight into your data’s landscape, you can tailor your DLP efforts.

Step 2: Use encryption to protect your files

Encryption turns data into a code that only authorized users can read. It helps protect sensitive information from cybercriminals. When data needs to be accessed, a decryption key is used to turn it back into its original form.

Encryption safeguards data both when it’s stored and when it’s being transferred. Encryption is required by data protection laws like GDPR and PCI DSS, as it helps reduce the risk of data loss and helps businesses stay compliant with regulations.

NordLayer’s advanced encryption protocols, such as AES 256-bit and ChaCha20 encryption, further strengthen your data’s confidentiality and integrity.

Step 3: Enable access controls

Access controls limit who can see your sensitive data. This can include defining data classification, access controls, encryption standards, and incident response procedures. You can strengthen access with the following solutions:

  • Network Access Control (NAC) ensures that unauthorized users and devices are kept out of your business network.
  • Identity and Access Management (IAM) verifies that every user accessing the network is properly authorized.
  • Network segmentation restricts access so employees and contractors only see the data they need to do their jobs, nothing more.
  • Cloud Firewall lets you control who and how to access internal resources and cloud tools, adding an extra layer of protection.

Step 4: Monitor data access

Monitoring allows you to track who accesses data and helps quickly spot unauthorized activity. By tracking user interactions and reviewing logs, businesses can detect breaches and respond faster. Real-time monitoring solutions can alert security teams about suspicious behavior.

Additionally, Device Posture Security monitors access to every application on every device. Real-time alerts inform security teams about suspicious behavior, while automated monitoring tools help identify anomalies and uncover potential breaches. Regular audits should measure incident detection and response times, data breach reductions, and cost savings.

Step 5: Conduct regular security audits

Regular security audits help identify vulnerabilities in systems that could lead to data loss. These audits examine software, hardware, networks, and policies. Once vulnerabilities are found, businesses can take steps to fix them, such as updating software or improving security protocols.

Evaluate your DLP using these key performance indicators (KPIs):

  • Incident detection & response times: How quickly data breaches are detected and resolved
  • Reduction in data breaches: A decrease in the frequency and severity of data breaches
  • Cost savings: Financial benefits from preventing breaches and avoiding regulatory penalties

Regular monitoring and audits, combined with the integration of NordLayer’s security solutions, will help optimize your DLP strategy. This approach ensures ongoing data protection and supports your SOC 2 compliance efforts.

Step 6: Train your team

Employee training is key to preventing data breaches caused by human error. As we have already mentioned, 95% of breaches happen because of mistakes made by people. That’s why teaching staff to spot phishing emails, use strong passwords, and follow data protection rules can reduce these risks.

Regular training keeps employees aware of current threats and reinforces their role in protecting sensitive information. It also helps build a strong security culture.

Step 7: Create a strong incident response plan

Data breaches can still happen, so it’s crucial to have a plan for responding quickly. The plan should include identifying the breach, containing it, notifying affected individuals, investigating the cause, and taking corrective actions to prevent future breaches.

A clear incident response plan minimizes damage and helps businesses recover quickly. In short, having an incident response plan is crucial for managing data breaches and minimizing their impact.

Why choose NordLayer for enhanced data protection?

We provide robust solutions for Data Loss Prevention to protect your business:

  • Network Access Control (NAC): Ensures only authorized users and devices can access your network by enforcing security policies.
  • Identity and Access Management (IAM): Allows only authorized users to access your resources.
  • Network Segmentation: Restricts access to data, ensuring employees and contractors only see what’s relevant to their roles.
  • Cloud Firewall: Network segmentation with customized access controls ensures only authorized users can access sensitive data and reduces the risk of insider threats or data leaks.

Additional solutions include:

  • Single Sign-On (SSO): Secure, easy login that integrates with popular Identity and Access Management (IAM) providers.
  • Two-factor authentication (2FA): Adds an extra layer of security with a second verification step.
  • Advanced traffic encryption: AES 256-bit and ChaCha20 encryption protect data in transit, ensuring data confidentiality and integrity.

NordLayer’s solutions seamlessly integrate into your existing infrastructure, offering advanced monitoring, threat detection, and incident response capabilities.

Strengthen your data protection strategy today and prepare for even more with our upcoming Enterprise Browser. Don’t wait for a breach—join the waiting list now!

Joanna Krysińska

Senior Copywriter

A writer, tech enthusiast, dog walker, and amateur pastry chef, Joanna grew up in a family of engineers and mathematicians, so a techy mind is in her genes. She loves making complex tech topics less complex and digestible. She also has a keen interest in the mechanics of cybercrime.

 

About NordLayer
NordLayer is an adaptive network access security solution for modern businesses – from the world’s most trusted cybersecurity brand, Nord Security.

The web has become a chaotic space where safety and trust have been compromised by cybercrime and data protection issues. Therefore, our team has a global mission to shape a more trusted and peaceful online future for people everywhere.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

Can a PDF have a virus? Practical solutions for cyber-safe businesses

Summary: PDFs can carry malware through scripts, embedded files, and exploits. Learn how to identify threats and protect your business.

Imagine getting an urgent email from a supplier with an attached invoice in PDF format. Without hesitation, you open it—only to realize later that your system has been compromised. This scenario is more common than you might think. According to cybersecurity reports, PDFs are becoming increasingly popular for distributing malware. Attackers exploit the trust users have in these documents to deliver malware, steal sensitive information, and gain unauthorized access to systems.

But how do PDF viruses work, and how can you protect your business from them? In this guide, we’ll explore how malicious PDF files operate, how they infect devices, and what cybersecurity measures can keep your business safe.

Key takeaways

  • PDF files can contain malicious code that exploits vulnerabilities to spread malware.
  • Cybercriminals use PDF documents to deliver malware, execute code, and steal sensitive information.
  • Some malicious PDF files contain JavaScript exploits, embedded executables, or phishing links.
  • Email attachments and downloading PDFs from untrusted sources are significant security risks.
  • Businesses should implement robust cybersecurity measures, including antivirus software and real-time malware protection.

What types of malware can PDFs have?

While PDFs are commonly used for business documents, reports, and invoices, they can also carry harmful software. Below are some ways an infected PDF file can pose a risk to your system

JavaScript code exploits

Some PDF viruses use JavaScript code. This programming language allows interactive features like forms or digital signatures. However, cybercriminals can exploit this functionality to run hidden scripts when the document is opened. These scripts can:

  • Download and install malware on the system
  • Steal sensitive information, such as login credentials
  • Redirect users to phishing websites designed to capture personal data

Embedded executable files and malicious software

PDF documents can contain embedded files, including executable programs (.exe), scripts, or other payloads. If a user clicks on an embedded file, it can install harmful software on the device. Common examples include:

  • Ransomware that encrypts files and demands payment
  • Keyloggers that capture keystrokes to steal passwords
  • Trojans that provide remote access to the system

PDF viruses that execute code

Certain malicious PDF files exploit vulnerabilities in PDF readers to run code without the user’s knowledge. This method allows attackers to:

  • Distribute malware across networks
  • Modify system files
  • Gain unauthorized access to company resources

Common PDF attack scenarios

Since PDF files are widely trusted and frequently shared in business settings, bad actors take advantage of that to trick users into opening infected files. Below are some of the most common attack scenarios businesses should be aware of:

  • Email attachments: Cybercriminals often distribute compromised PDF files through phishing emails, impersonating trusted senders
  • Fake invoices and reports: Fraudsters send malicious PDFs disguised as legitimate business documents
  • Downloadable PDFs on websites: Attackers upload infected files to compromised websites, luring victims into downloading PDF files

These methods allow malicious actors to distribute malware quickly without raising suspicion. Once a harmful PDF is opened, it can exploit vulnerabilities, run code, and steal sensitive data. Understanding how these attacks work is the first step in preventing them.

Now, let’s examine how an infected PDF file infiltrates your system.

How PDF viruses infect your device

A compromised PDF file can spread malware in various ways:

  1. Exploiting software vulnerabilities: If a PDF reader isn’t updated, attackers can use known security flaws to execute malicious code.
  2. Encouraging users to enable permissions: Some PDFs request additional permissions that, when granted, allow malicious actions.
  3. Triggering automatic scripts: JavaScript-based attacks can initiate downloads or connect to malicious servers.
  4. Embedding infected links: Clicking on a link inside a PDF may redirect users to phishing pages designed to steal credentials.

Other hidden threats in PDF attachments

While malicious PDFs are often associated with direct malware infections, they can also serve as gateways for other cybersecurity threats. Bad actors are always improving their tactics. They embed hidden dangers within seemingly harmless documents to compromise devices and steal sensitive data.

 

Understanding these risks is essential for businesses looking to protect their cyberspace.

Malicious links and phishing attempts

Many malicious PDFs contain links that appear legitimate but direct users to harmful websites. These sites may:

  • Trick users into entering login credentials.
  • Install malware upon page load.
  • Request fake security updates to compromise devices.

Hidden form fields and data harvesting

Attackers can embed hidden form fields within PDF documents to collect sensitive data. Unsuspecting users might unknowingly submit information such as:

  • Banking details
  • Company login credentials
  • Personal identification numbers

Additional threats to watch for

Beyond traditional malware and phishing tactics, additional threats that can compromise your security are:

  • Obfuscated code: Malicious PDFs can use encrypted or hidden code to bypass security detection
  • Redirect chains: Clicking a link in a PDF might trigger multiple redirects (a bunch of hidden websites) before landing on the final malicious page

These hidden threats illustrate how PDFs can be manipulated for cyber-attacks beyond traditional malware infections. By recognizing these dangers, businesses can take proactive steps to secure their systems. Next, let’s explore how to identify the signs of a malicious PDF before it compromises your security.

Signs of a malicious PDF

Be cautious if you notice any of the following:

  • Unexpected prompts requesting permissions
  • PDF attachments from unknown senders
  • Unusual file sizes or strange formatting
  • Warning messages from your PDF reader or antivirus software
  • Links that don’t match their displayed URLs

PDF security best practices

Protecting your business from malicious PDFs means taking a proactive approach. Implementing best practices can significantly reduce the risk of malware infections and data breaches.

To protect your business from PDF malware, follow these security measures:

  1. Use real-time malware protection. Deploy security solutions that scan PDF attachments before opening. Many modern antivirus software solutions include real-time scanning features that help block suspicious PDFs immediately.
  2. Keep software up to date. Regularly update your PDF reader, operating system, and antivirus software to patch vulnerabilities. Cybercriminals exploit outdated software with known security flaws, so keeping all applications current is essential. Enabling automatic updates for your antivirus software ensures you have the latest threat definitions and security patches.
  3. Disable JavaScript in your PDF reader. This reduces the risk of script-based attacks. Disabling JavaScript in your PDF viewer limits the chances of unauthorized code running on your system and strengthens overall security.
  4. Avoid opening suspicious email attachments. Verify senders before downloading PDFs. Attackers frequently disguise malicious PDFs as legitimate business documents, such as invoices or contracts. If you happen to receive an unexpected attachment, please confirm its legitimacy through a separate communication channel before opening it.
  5. Enable email security filters. Use advanced email protection to detect and block malicious PDFs. Many email security solutions offer automated scanning and filtering of incoming messages, preventing phishing emails and malware-laden attachments from reaching your inbox. Configuring these filters to work alongside your antivirus software strengthens your business’s defense against cyber threats.
  6. Train employees on cybersecurity awareness. Educate your team about recognizing phishing emails and malicious PDF files. Regular cybersecurity training sessions help employees identify suspicious attachments, avoid clicking on malicious links, and follow best practices for handling digital documents. Encouraging a security-conscious workplace culture is one of the most effective ways to prevent cyberattacks.

By following these best practices, businesses can create a safer digital environment and minimize the risk of falling victim to PDF-based cyber threats. However, staying vigilant and employing additional security solutions is just as critical.

How NordLayer can help

Cybercriminals constantly evolve their tactics, making it crucial to implement proactive security measures. NordLayer’s toggle-ready network security platform offers real-time malware protection to scan and block malicious downloads before they reach your systems.

With NordLayer’s advanced security features, businesses can:

  • Detect and prevent malicious software in PDF attachments
  • Block suspicious links and phishing attempts
  • Secure sensitive information against cyber threats

Protect your company from PDF malware and ensure a safer digital workspace today.

About NordLayer
NordLayer is an adaptive network access security solution for modern businesses – from the world’s most trusted cybersecurity brand, Nord Security.

The web has become a chaotic space where safety and trust have been compromised by cybercrime and data protection issues. Therefore, our team has a global mission to shape a more trusted and peaceful online future for people everywhere.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

PatientMpower prioritises privacy and security in remote healthcare with NordLayer

Summary: PatientMpower is a digital healthcare company that helps people with chronic illnesses monitor their health at home. Based in Dublin, they serve patients worldwide.

Results at a glance patientmpower

PatientMpower is a digital healthcare innovator. They help people with chronic illnesses manage their conditions at home. Their remote monitoring platform integrates with Bluetooth devices like spirometers and blood pressure monitors. Healthcare providers can then access this data through a secure portal.

They are based in Dublin, Ireland, but serve customers in the US, UK, Canada, and Europe. Their platform supports chronic conditions, including COPD, heart failure, pulmonary fibrosis, and lung transplants.

Profile of patientMpower

PatientMpower needed a flexible VPN to support their global team and keep data safe. Hardware VPNs caused downtime and needed constant upkeep. NordLayer’s cloud-based solution fixed these issues, saving time and making security easier.

The challenge: old physical VPN caused problems

PatientMpower’s hardware VPN was fine when most people were in the office. Then COVID-19 forced them to work from home. The physical VPN kept failing. The company wanted a cloud-based service that offered a static IP in Ireland. Oisín Hayes, Business Operations Manager & Data Protection Officer, says:

“Before NordLayer, we had a physical hardware VPN in the office. It was hard to maintain. It shut down often, and nobody was there to restart it when we all worked remotely.”

They checked many VPN providers. Some charged extra for a dedicated IP. Others had hidden fees. NordLayer stood out by offering a fair price and an admin console that was easy to use.

Step 1. Deploy NordLayer in 10 minutes

They switched to NordLayer in 2022. It replaced their old VPN right away.

  1. They chose a NordLayer plan
  2. Created user accounts
  3. Trained employees on the new client

“NordLayer was the one that felt most accommodating. We wanted a dedicated IP in Ireland, and they didn’t charge us extra.”

Step 2. Set up a Server with a dedicated IP

PatientMpower uses Amazon Web Services (AWS) to host their database. They need strong encryption and secure connections. Here’s what they did:

  1. Configured a server in Ireland
  2. Enabled a static IP for NordLayer
  3. Restricted access to only those on the VPN

They stay HIPAA-compliant and ISO 27001-compliant. ISO 27001 requires an external auditor every year. That means they must prove their security and alignment with best practices, and NordLayer helps with that.

“ISO 27001 is a top standard. Using a dedicated IP solves many security problems and helps to stay compliant with it.”

NordLayer Network - Gateways - Filter

* Example screenshot for illustration purposes.

Step 3. Combine NordLayer with AWS encryption

AWS encrypts data at rest. NordLayer encrypts data in transit. This two-layer approach keeps patient data safe.

  1. Linked AWS with the VPN
  2. Allowed access only from the NordLayer IP
  3. Met encryption and data breach controls

“We set it up so you can only access AWS if you go through our VPN.”

Step 4. Enable Web Protection

NordLayer’s Web Protection (ex-ThreatBlock) feature blocks harmful websites. It also removes pop-up ads and other distractions.

  1. Turned on Web Protection to filter malware
  2. Monitored for any sites falsely blocked
  3. Reduced risk of accidental infection

“When enabled, it blocks websites flagged as threats, so malware can’t infect your device.”

 
 

Step 5. Use Dashboards for ISO 27001 audits

NordLayer’s dashboards track user logins and network activity. These insights help with ISO 27001 audits.

PatientMpower reaches full 2FA adoption

Here is what they did:

  1. Pulled reports from the dashboard
  2. Shared data with external auditors
  3. Proved secure remote access for employees

“We use the dashboard for our ISO 27001 audit. It’s easy to show proof of security.”

Results: 50% admin time saved

  • 50% admin time saved
    They no longer waste hours fixing a physical VPN. It just works in the background.
  • Committed to NordLayer
    They compared other solutions but decided to stay. NordLayer had better pricing and support.
  • Seamless operation

“Our physical VPN caused no end of issues and it just wasn’t really functioning. NordLayer just exists in the background and does its job, and we don’t know it’s there.”

Why NordLayer works for patientMpower

They have used NordLayer for three years. It meets their top priorities: security and reliability. It also keeps remote work simple. Adding or removing seats is easy.

“You just add a seat, and then they bill you next month. It’s very straightforward.”

Pro cybersecurity tips from patientMpower

Quote

Conclusion

PatientMpower replaced their old physical VPN with NordLayer. They set up a Dedicated IP, turned on Web Protection, and used Dashboards for ISO 27001.

“It only took 10 minutes to deploy NordLayer. Now it keeps data secure without any hassle.”

Any business can do the same. NordLayer offers quick deployment, flexible pricing, and strong data protection.

Visit NordLayer and find the plan that fits your needs.

About NordLayer
NordLayer is an adaptive network access security solution for modern businesses – from the world’s most trusted cybersecurity brand, Nord Security.

The web has become a chaotic space where safety and trust have been compromised by cybercrime and data protection issues. Therefore, our team has a global mission to shape a more trusted and peaceful online future for people everywhere.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

Need help? Our team is just a message away