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What is data security?

A sound and thoughtful data security strategy can make a difference in a business environment because it helps organizations protect one of their most valuable assets—data—against cyberattacks.

Why is enterprise data security important?

In the digital age, data reigns supreme. These days, all businesses deal with data in one way or another. Whether it’s a financial institution handling sensitive customer data or an individual operation collecting the contact information of its clientele, data is a significant part of all enterprises, regardless of their size or industry. Data informs decision-making, improves efficiency, enables better customer service, and plays a major role in marketing.

With growing public awareness about the importance of data security and more data-related laws and regulations coming into play, companies face challenges in creating secure infrastructures and processes to handle enormous amounts of data.

Data security software management strategies are simple to establish, for instance, by conducting digital safety training or enforcing centralized password policies. Setting up an enterprise password manager can be a massive upgrade to an organization’s security practices. Although high-end software can greatly improve an organization’s security strategy, employee awareness is often what makes or breaks its effectiveness.

Failure to establish a secure perimeter frequently results in a data breach, leading to substantial regulatory fines and reputational damage. According to IBM’s Cost of Data Breach Report 2023, the global average data breach cost is estimated at $4.45 million. It’s not hard to imagine that a data breach could spell the end of a company.

As data breaches and cybercrime continue to rise and become more sophisticated, companies of all sizes and industries look for ways to ensure the security of their data. And the first step in doing so is understanding the threats you’re facing.

What threats to data security do companies face?

Cyber threats that can compromise data security in businesses come in various shapes. Here are some of the most common data security risks that every organization has to deal with.

  • Phishing attacks

Phishing attacks are designed to acquire sensitive information from unsuspecting users. Hackers achieve their goal by crafting email messages that appear to be from a reputable source. In those messages, you are usually urged to download a malicious attachment or click on a dodgy link. If you follow through, the attackers can access your device and get their hands on your sensitive data.

  • Accidental data exposure

Not all data breaches are caused by cyberattacks. Sometimes, they’re byproducts of human error or lack of awareness. In day-to-day office life, employees will inevitably share data and exchange access credentials. Unfortunately, security might not be at the top of their priority list, and accidents can happen: data can end up on an unsecured server, and passwords can be stored in a publicly accessible sheet. That’s why cybersecurity training sessions are critical. Once employees grasp what’s at stake and what to pay attention to, the risk of accidental data exposure can be drastically minimized.

  • Malware

Malware is usually spread via email. In most instances, hackers launch a phishing campaign to trick users into downloading and installing malicious software. Once malware is on a corporate network, hackers can do pretty much anything, from tracking network activity to downloading enormous amounts of data without authorization.

  • Ransomware

Ransomware is a type of malware that is designed to encrypt data on the affected machine. If a ransomware attack is successful, bad actors will demand a ransom in return for decryption services.

  • Insider threats

Insider threats might be the hardest to anticipate. As you can guess, insider threats are employees who intentionally harm an organization’s security perimeter. They might share sensitive data such as passwords with dubious third parties or steal business data and sell it on the black market.

What types of data security are we talking about here?

As already discussed, data security protection strategies comprise many different tools and practices. Typically, the most effective way to ensure data security is to use a combination of security practices to limit the potential surface area of an attack.

Data encryption

Data encryption is one of the easiest ways to ensure the security of sensitive information. Fancy terminology aside, data encryption converts readable data into an unreadable encoded format. Think of it this way: even if a hacker were to get their hands on the encrypted data in your servers, they couldn’t do anything unless they managed to decrypt it. Fortunately, contemporary encryption is unbelievably hard to crack without a decryption key.

Data erasure

As time passes, collected data can become irrelevant. It can clog your servers like clutter in your attic. Security-wise, irrelevant data is rarely considered a priority, and sometimes, it’s best to just get rid of it for good. Data erasure is an effective data management and security method because it shrinks the potential attack surface and liability in case of a data breach.

Data masking

Data masking is a data security technique during which a data set is duplicated, but its sensitive data is obfuscated. The benign copy is usually used for testing and training for cybersecurity purposes. Masked data is useless for a hacker because it is essentially incoherent unless the hacker knows how that data has been obfuscated.

Data resiliency

Data backups are among the easiest steps an organization can take to mitigate the potential dangers of data loss in a cyber event. Backups ensure that even if data is compromised or stolen, it can be recovered to its previous state rather than entirely disappear.

Data security vs. data privacy: What’s the difference?

Today, the terms “data security” and “data privacy” are often used interchangeably. While, in a general sense, that can be true, they’re technically distinct concepts.

Data security is a broad term that encompasses data privacy. However, when we talk about data security, we mainly refer to cybersecurity practices aimed at protecting data from unauthorized access or corruption.

Data privacy, on the other hand, is a concept that aims to ensure the way businesses collect, store, and use data is compliant with legal regulations.

How about data security vs. cybersecurity?

Similarly, you might have some questions about the difference between the terms “data security” and “cybersecurity.” The difference here is the scope of what each security type covers.

Broadly speaking, cybersecurity concerns things on the macro level: protecting servers and networks from cyberattacks as the first line of defense. Data security, on the other hand, protects the micro: the actual data stored within the networks. If cybersecurity measures fail, data security aims to keep valuable information unaffected using encryption and other measures we’ve discussed.

 

How does data security compliance work?

Today, most countries have laws and regulations that govern the way organizations should collect, store, and use data. Regulatory compliance can be a challenge for companies of all sizes and industries. Still, they’re vital in ensuring that your data will not be abused and remain secure at all times. Here are some of the most important regulations that relate to data security.

General Data Protection Regulation (GDPR)

The GDPR is the European Union’s primary data protection and privacy legislation. Passed in 2016 and implemented in 2018, it ensures organizations handle consumer data responsibly and securely. The GDPR was one of the first legislative efforts requiring companies to ask for user consent to collect their data.

The GDPR is expanded legislation, and failure to comply can lead to penalties of up to €20 million, or 4% of a company’s annual global turnover. Thus, choosing reliable tools that help work toward compliance with GDPR, like NordPass, to manage and secure customer data, is crucial for ensuring overall enterprise security.

California Consumer Privacy Act (CCPA)

The CCPA went into effect on January 1, 2020. It provides consumers in California with additional rights and protections regarding how businesses use their personal information. The CCPA is very similar to the GDPR and imposes many of the same obligations on businesses that the GDPR does, except for the implementation of robust security measures to protect customers’ personal information from unauthorized access, destruction, modification, or disclosure.

Health Insurance Portability and Accountability Act (HIPAA)

HIPAA is the United States data protection and security legislation that regulates electronically protected health information (ePHI). It is aimed mainly at healthcare providers and partnering institutions that deal with such data. HIPAA lays out requirements for the security of ePHI, which involves specific physical, technological, and administrative safeguards. To stay compliant with HIPAA regulations, medical companies should implement some security measures: safe traffic encryption with a VPN, secure messaging apps, encrypted email services, and reliable business password management.

Sarbanes-Oxley (SOX) Act

The SOX Act was passed in 2002 to protect shareholders and the general public from fraudulent corporate practices and to improve the accuracy of corporate disclosures. Although the act does not specify how an organization should store records, it does define which documents should be stored and for how long. The SOX Act primarily applies to public corporations.

Payment Card Industry Data Security Standard (PCI DSS)

The PCI DSS is a set of regulations geared toward organizations that process, store, and transmit credit card data. It lays out requirements to ensure that all credit card-related data is handled securely.

International Standards Organization (ISO) 27001

ISO/IEC 27001 is an Information security management standard that outlines how business entities should manage risk related to cybersecurity threats. The ISO 27001 standard is used to define data security guidelines and requirements intended to protect an organization’s data assets from unauthorized access or loss. The ISO/IEC 27001 is not legislation in the sense that the GDPR is. It is rather a standard that helps businesses comply with regulations such as the GDPR cost-effectively.

Data security best practices

Data security is a complex concept that includes a variety of practices and processes working together like a well-oiled machine. The data security strategy within the organization depends on its size, IT infrastructure, resources, and several other variables. However, a few data security technologies and solutions can be applied in any organization.

Access management and controls

Access management and controls help organizations set rules for who has access to networks, systems, files, and various accounts within the digital ecosystem. Proper access management and control integration can significantly shrink the potential attack surface area.

Employee education

One of the leading causes of data breaches is human error. The obvious counter is education. For an organization that wishes to be successful security-wise, a team that is aware of the risks that might be faced and how they would be handled is crucial.

Password management

Weak, reused, or old passwords also play a significant role in data breaches. It’s understandable because today, an average person needs about 170 passwords, leading to a reliance on the same easy-to-remember passwords for multiple accounts. Ensuring that each one is unique and complex is impossible without help from technology. Password managers are tools designed to help individuals and organizations create strong passwords, securely store them, and access them whenever there’s a need. Today’s business password managers improve organizational security as a whole and spur productivity with handy features such as autofill and autosave.

Cloud data security

Many organizations rely on cloud technologies to carry out daily operations. While cloud technology offers significant benefits, it simultaneously opens up additional security risks. Misconfigured cloud technology services can lead to data leaks and breaches. Therefore, you must take action to ensure that any cloud apps you use are properly configured to limit potential risks and prepare a robust cloud security strategy for your company.

Data encryption

As discussed earlier, data encryption is a way to secure information within databases and servers by making it unreadable without the decryption key. Encryption is essential to overall data security and should always be employed.

Data loss prevention and backups

These days, most business-related information is stored in databases. The data they contain may be customer records, credit card details, or internal company documents. Backing up data protects the organization from accidental data loss or corruption. Regularly scheduled backups can also help in the case of a ransomware attack since they can be used to restore the affected data.

Incident response and disaster recovery plans

An incident response plan is an organization’s systemic approach to managing a security-related event. Usually, such plans are purpose-built to address malware attacks, data breaches, unauthorized network intrusions, and other cybersecurity-related events. With a comprehensive incident response plan, the organization has a clear pathway to mitigating a cyber attack in a swift and coordinated manner.

A disaster recovery plan (DRP) is focused on broader business continuity and recovery efforts in the face of major disasters: natural catastrophes, power outages, or system failures. DRP encompasses a more extensive range of scenarios than IRP, often including data backup and redundancy, a proactive cybersecurity approach, alternate work locations, and comprehensive recovery procedures.

Multi-factor authentication (MFA)

Multi-factor authentication is a method that requires two or more authentication factors such as additional passwords, PINs, passphrases, tokens, geographical locations, or biometric data. In the business world, multi-factor authentication provides the highest level of security required by GDPR or HIPAA regulations. MFA works like a safety net and can save an organization a lot of trouble and money if login credentials to corporate accounts are breached. In most cases, cyber crooks are not able to obtain extra authentication factors.

It seems only reasonable to ask for extra proof of identity online. However, many individuals and companies rely solely on one layer of security. The reason may be a common misconception that MFA is difficult to adopt, especially in a corporate environment where it has to be incorporated into the existing IT infrastructure. In reality, advanced password management tools like NordPass can smooth the whole process and make the adoption of multi-layered security easy like a piece of cake.

Email security

For many, emails are their main work tool. No wonder so many corporate secrets get into the wrong hands through carefully crafted phishing emails. Cybercrooks bend over backward to make their fraudulent attempts look legit. Luckily, some measures enhance company email security.

First of all, well-trained employees who are aware of various types of cybercrime are less likely to risk the company’s safety by clicking random links or acting in haste. Second, corporate-wide solutions like multi-factor authentication, encrypted VPN, or email masking create further layers of security, contributing to the overall safety of an organization. Finally, the random and complex passwords stored in an encrypted vault are the solid foundation of email security and should never be underestimated.

The Future of Data Protection

Technological developments like AI-powered tools create new opportunities for cybercriminals to compromise data security and obtain highly valued sensitive information. Businesses need to think fast to prepare themselves for emerging threats and keep a close eye on their data security systems to ensure they don’t leave any room for cybercrooks to interfere.

AI enhancements. What’s the best way to fight AI-powered fraud tools? AI-powered security tools. AI can enhance data security systems by speeding up threat response times and providing more sophisticated analysis of your organization’s threat landscape. AI tools can also provide live monitoring of data security systems.

Multicloud security. While cloud security has become somewhat of a norm for businesses, developments in quantum computing pose risks that it may not be sufficient in the future. Multicloud security provides broader support for data protection. Companies use tools from different cloud solution providers to decentralize access to sensitive information and increase their overall security.

Quantum security. Although quantum cybersecurity is still in the conceptual stage, its practical use is already being discussed by tech experts. Quantum computing has the potential to provide new kinds of complex encryption for sensitive data that could not be bypassed by non-quantum means.

How NordPass Business can help

As mentioned, weak, old, or reused passwords are often the cause of a data breach. Password fatigue is a major factor that leads people to use weak and easy-to-remember passwords across multiple accounts. However, password fatigue can be mitigated with the help of a corporate password manager.

NordPass Business is purpose-built to improve organizational security and take a load off employees when creating and remembering passwords. Keep all your business passwords, credit cards, and other sensitive information in a single encrypted vault and securely access it whenever you need. Thanks to company-wide settings present in NordPass Business, you can set password policies across your organization. And with the help of the Admin Panel, access management is easier than ever.

NordPass Business is ISO/IEC 27001:2017 certified and has received the SOC 2 Type 2 attestation, making it a critical security tool for companies striving to meet GDPR and HIPAA compliance standards.

Try NordPass Business with the 14-day free trial and enjoy improved productivity and security within your organization.

About NordPass
NordPass is developed by Nord Security, a company leading the global market of cybersecurity products.

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.

ESET Wins 2025 SC Award for Ransomware Remediation

SAN DIEGO. Calif. — May 2, 2025 —ESET, a global leader in cybersecurity, is proud to announce that ESET Ransomware Remediation has won a 2025 SC Award for Best Business Continuity, Disaster, Ransomware Recovery Solution. Presented on April 29 during the SC Awards Reception at RSAC™ 2025, this award recognizes ESET’s advanced Ransomware Remediation technology and its pivotal role in helping organizations mitigate ransomware threats and recover swiftly from attacks. The SC Awards program, now in its 28th year, recognizes the solutions, organizations, and individuals that have demonstrated outstanding achievement in advancing the security of information systems.

“We are truly honored by this recognition, which affirms our belief that ransomware defense must go beyond prevention and empower speedy, seamless recovery,” said Ryan Grant, VP of Marketing and Sales at ESET North America. “With ESET Ransomware Remediation, we’ve built a solution that not only stops attacks in their tracks but also gives businesses the ability to bounce back quickly and confidently. It’s a critical step toward a future where organizations aren’t just reacting to threats, but are truly resilient in the face of them.”

ESET Ransomware Remediation, part of the ESET PROTECT platform, distinguishes itself by creating temporary encrypted backups in a sequestered environment, enabling rapid data recovery even in the event of encryption by ransomware. Unlike solutions reliant on the Windows Volume Shadow Copy service, ESET’s proprietary approach works post-execution, in concert with ESET Ransomware Shield, to detect, block, and recover from ransomware attacks with minimal disruption.

The SC Awards celebrate the most outstanding achievements in cybersecurity, from innovative technologies to forward-thinking organizations and individuals. The 2025 entries were evaluated across 33 specialty categories by a distinguished panel of judges, comprised of cybersecurity professionals, industry leaders, and members of the CyberRisk Alliance CISO community, representing sectors such as healthcare, financial services, education, and technology. The judging process emphasized technical merit, market impact, and the ability to solve real-world cybersecurity challenges. View the full list of 2025 SC Awards winners here: www.scworld.com/sc-awards.

“This year’s winners rose to the top, but they did so in a field crowded with standout talent, bold ideas, and hard-earned innovation,” said Tom Spring, Senior Editorial Director, SC Media. “With more than 160 finalists and hundreds of submissions, the 2025 SC Awards reflect the depth, diversity, and dynamism of the cybersecurity community.”

“SC Awards are recognized worldwide by the cybersecurity community, and we are honored to take home the Best Business Continuity, Disaster, Ransomware Recovery Solution award this year,” said Tony Anscombe, Chief Security Evangelist for ESET. “Cybersecurity solutions are evolving at breakneck speed, and these innovations are on full display this week at RSAC 2025. It was a pleasure to be recognized alongside some of the most innovative cybersecurity vendors in the industry at the SC Media Awards Ceremony.”

For more information on ESET’s award-winning Ransomware Remediation solution, visit http://www.eset.com.

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

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.

Stop reusing passwords: what recent NordPass survey reveals

Inside the 2025 NordPass password reuse survey

To measure just how regular the habit of password reuse remains, NordPass commissioned an independent research team to conduct interviews with 1,727 adults—619 Americans, 605 Britons, and 503 Germans. The questionnaire dug into 3 areas:

  • How often people reuse logins.

  • How many passwords and accounts the habit affects.

  • Why they still do it in 2025.

United States

  • 62% of Americans confess they “often” or “always” reuse a password.

  • The median reuser juggles 3 core passwords that unlock about 5 different accounts.

  • Half say they do it because it is “easier to remember fewer passwords,” and 1 in 3 feel overwhelmed by the sheer number of services they use each month.

  • A troubling 11% see “no significant risk” in repetition—proof that experience, not warnings, drives behavior.

United Kingdom

  • 60% recycle logins.

  • Memory anxiety eclipses convenience: 40% fear they will lock themselves out if every password is unique.

  • Convenience and “too many accounts” tie for second place, and the same 11% shrug off the threat altogether.

Germany

  • 50% reuse passwords, the “best” score but still a coin toss.

  • Convenience is the main motive for 37% of German reusers, with 29% citing account overload.

  • 13% believe repetition is practically harmless.

Taken together, the data say one thing: roughly 57% of consumers across 3 advanced economies still bet on duplicate credentials. That is a majority large enough to keep credential‑stuffing operations profitable for years.

Why people still reuse passwords

Respondents fell into 4 overlapping camps when it came to explaining their password reuse habits:

  • The memorizers. About half of the Americans, 43% of the Britons, and 37% of the Germans who participated in the survey say they reuse passwords because it is “easier to remember fewer passwords.”

  • The overwhelmed. Around 30% in each country cite “too many accounts” to manage different passwords.

  • The anxious. Fear of forgetting unique logins peaks at 40% in the UK, 38% in the US, and 31% in Germany.

  • The skeptics. Between 11% and 13% have never had to deal with the consequences of being breached and assume the risk is overblown.

How cybercriminals take advantage of reused passwords

Reuse turns one leak into a chain reaction. If hackers steal your password from a single site, they can try the same login on every other service you use—email, banking, work apps—until one opens. That’s why password reuse matters. And the criminal economy around stolen logins is on an industrial scale. It moves fast. Once a breach hits the dark web forums and marketplaces, there are multiple ways for bad actors to profit from stolen and reused credentials.

  • Credential stuffing. Attackers equipped with vast quantities of reused credentials load millions of user-password pairs into botnets that fire automated logins. Even a 1% success rate nets thousands of working accounts.

  • Account takeover. A reused password—usually exposed in data breaches—that opens your email inbox lets cyber crooks reset everything else—cloud storage, cryptocurrency wallets, emails, etc. The initial foothold becomes a pivot point into higher‑value targets.

  • Social engineering. With control of social or business accounts, criminals study message history and craft believable requests: “Can you approve this invoice?” or “Forgot to pay the supplier—use this account.” Victims respond because the request comes from what would appear to be a trusted identity.

The role of businesses in preventing password reuse

Companies sit on both ends of the password reuse problem. They must protect their staff from careless habits, and shield customers whose credentials may already be up for sale on the dark web. There are a few ways organizations can tackle the problem.

Reject reused credentials

During the signup or password reset process, the site should check the proposed password against a breach database. If the string has appeared in past leaks—or looks identical to one already on file—the user sees an offer to choose something stronger. Also, embedding a one‑click password generator would remove friction.

Layer authentication

Multi‑factor authentication stops automated takeover even when credentials leak. A growing number now leapfrog passwords altogether by offering FIDO passkeys — device‑bound cryptographic secrets that can’t be reused or phished.

Security training

Companies that run frequent, hands‑on security workshops experience far fewer cases of employees reusing credentials. Demonstrating how quickly a single compromised login can ripple through an entire network makes it clear that password reuse is a very bad habit.

Password manager adoption

Many companies now encourage—or even require—the use of business password managers. When staff have a secure vault for their logins, they’re far less likely to recycle passwords. Most vaults also include built-in password generators that create strong, random strings on demand, taking the guesswork out of crafting robust credentials.

How to stop reusing passwords

To effectively break the habit of password reuse, all you need is a workflow that treats strong, unique credentials as the default rather than the exception. Here are some pointers on how you can do that.

Adopt a password manager

Tools like NordPass generate, sync, and autofill passwords across devices. The user remembers one Master Password; the vault remembers the rest. A built-in Password Generator produces random, high‑entropy strings at the click of a button, eliminating the temptation to ring in the new year with P@ssw0rd2026.

Consider passkeys

A passkey pairs public‑key cryptography with device biometrics, so there’s nothing to type, nothing to forget, and nothing to reuse. Many major platforms already support them; our What is a passkey? explainer walks you through setting one up for the first time. Where passkeys are unavailable, turn on MFA to add a second check that attackers can’t guess from a breached list.

Audit dormant accounts

Old forums, shopping sites you used once for a novelty gift, that abandoned fitness‑tracking app—each is a latent vulnerability if it shares credentials with active services. Close the account, or at least reset the password to something unique. Browse our annual list of the most common passwords for inspiration on what not to choose.

Final thoughts

Password reuse thrives on short‑term convenience and long‑term optimism. Our survey shows that 57% of users in 3 mature digital economies still rely on that optimism, even as criminals industrialize credential theft. The cure is hardly exotic: password managers, layered authentication, and a realistic assessment of risk. Breaking the habit doesn’t demand perfect vigilance, but rather a willingness to trade poor memory tricks for purpose‑built tools.

About NordPass
NordPass is developed by Nord Security, a company leading the global market of cybersecurity products.

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.

The Overlooked Vulnerabilities of the DNS Protocol: What is DNS Tunneling?

What is DNS Tunneling and How Does It Work?

DNS is often called the “phonebook of the internet,” translating human-friendly domain names into IP addresses. Under normal conditions, a DNS query contains only the information needed to resolve a hostname to an IP address. DNS tunneling exploits this protocol by inserting arbitrary data into DNS queries and responses, effectively encoding other communications within the DNS traffic . In a typical DNS tunnel, an attacker sets up a malicious domain and an authoritative DNS server for that domain. Malware or a compromised device inside the target network will then encode data (e.g. stolen information or command-and-control messages) into DNS queries for subdomains of the attacker’s domain . These queries travel as normal DNS requests through the organization’s DNS servers and resolvers, eventually reaching the attacker’s authoritative DNS server, which decodes the hidden data. The attacker’s server can likewise encode responses to send commands or data back to the compromised system. In essence, DNS tunneling establishes a covert, bidirectional channel over DNS, a channel that most network defenses don’t inspect closely, since DNS is usually viewed as benign name resolution traffic.

DNS tunneling represents a critical, yet often underestimated, vulnerability within the DNS protocol. In this first part of our series, we explored what DNS tunneling is, how it operates by exploiting legitimate DNS requests, and the differences between normal DNS traffic flows and tunneled traffic. We also reviewed some of the open-source tools commonly used to facilitate DNS tunneling, highlighting how accessible and adaptable these methods have become.

From a technical standpoint, DNS tunneling works by encoding data from other protocols or applications into DNS messages . For example, an infected client might take a chunk of payload, say part of a file or a command, base32 or base64 encode it, and append it as a subdomain in a DNS query (e.g. <encoded-data>.malicious-domain.com). When the organization’s DNS resolver receives this query, it thinks it’s a normal lookup for an external domain and forwards it to a public DNS resolver, which in turn asks the attacker’s authoritative name server. The authoritative server, controlled by the attacker, receives the query, decodes the data from the subdomain, and may respond with a DNS answer that also contains encoded data in a TXT record or in the field of an A record. The compromised client then decodes that data from the DNS answer. In this way, the attacker and malware establish a two-way communication tunnel hidden inside DNS traffic. Practically any type of data can be tunneled, attackers can exfiltrate sensitive files in small chunks, or send commands to a backdoor implant, all obscured as DNS queries and replies.

Because DNS is such a fundamental service, it is almost always allowed to operate freely. Most DNS queries use UDP on port 53 with fallback to TCP for large responses, and this port is typically open through firewalls and allowed on almost every network . Attackers leverage this by sending their malicious traffic over DNS, knowing that it will bypass many restrictions that would stop other channels. In summary, DNS tunneling repurposes a ubiquitous infrastructure protocol for covert communication. Next, we’ll examine why this technique is so dangerous for companies.

Open-Source DNS Tunneling Tools and Their Capabilities

There are several open-source tools that implement DNS tunneling, each with its own features and use-cases. These tools are often used by penetration testers to bypass captive portals or by attackers to establish C2 channels. Below is a list of some well-known DNS tunneling tools and a comparison of their functionality:

Each of the DNS tunneling-specific tools above can be used maliciously to bypass network defenses. Notably, they are all freely available, lowering the barrier for attackers. Next, we will visualize how normal DNS traffic flows in a network versus how a DNS tunneling attack leverages that flow for illegitimate purposes.

Normal DNS Traffic Flow vs. DNS Tunneling

To better understand DNS tunneling, it’s helpful to contrast it with normal DNS resolution. Figure 1 shows a simplified normal DNS query flow within an organization, while Figure 2 illustrates a DNS tunneling scenario (malicious flow). We will describe each in turn:

In a typical corporate network, clients (user workstations or devices) send DNS queries to a local DNS server (often an internal DNS or one provided by the organization). This DNS server is within the company’s network perimeter, protected by the firewall, and will resolve names on behalf of clients. If the local DNS server doesn’t know the answer (the domain is external), it will forward the query out through the firewall to a public DNS resolver (such as an ISP’s resolver or a service like Google DNS). The firewall permits these DNS requests (UDP/53) to pass because DNS is necessary for connectivity. The public resolver then performs the recursive resolution: it contacts the appropriate authoritative DNS servers for the domain in question. For example, if the client is resolving example.com, the resolver will query the root servers, then the .com TLD servers, and finally the authoritative server for example.com to get the IP address. The answer (the resolved IP) comes back from the authoritative DNS server to the public resolver, and then back through the firewall to the company’s DNS server, and finally to the client. All of this happens in the background within milliseconds, enabling the client to connect to the desired host. In the normal flow, all DNS queries are for legitimate hostnames and the responses are IP addresses or other genuine DNS records. The key point is that the authoritative servers involved belong to the real owners of the domains being queried (e.g., the authoritative server for google.com is Google’s DNS server). The DNS traffic contents are just domain names and IP addresses, no hidden messages.

DNS Traffic Flow Diagram

Now consider a scenario where malware inside the network is performing DNS tunneling. The setup looks similar on the surface, the client still queries the internal DNS server, which forwards the query out to a public resolver, and an authoritative server eventually provides an answer. The crucial difference is the query itself and the ownership of the authoritative server. In a DNS tunneling attack, the attacker has registered a domain, say, attacker-domain.com, and set up an authoritative name server (NS) for it under their control (red server in the diagram). The malware doesn’t ask for something like login.microsoft.com; instead it queries a subdomain that encodes data, such as abcd1234.attacker-domain.com, where abcd1234 is encoded stolen data or a command. This query goes to the company DNS server, then out to the public resolver. The public resolver sees that the query is for attacker-domain.com and thus needs to go to that domain’s name server, which is the attacker’s malicious DNS server. The query reaches the attacker’s DNS server, which recognizes the encoded data (the abcd1234 subdomain) as part of the secret communications. It then formulates a DNS answer. For example, it might return a TXT record for abcd1234.attacker-domain.com with some encoded content, perhaps the next chunk of exfiltrated data, or the instruction “OK” for the malware to proceed. That answer travels back to the public resolver, through the firewall, into the company DNS, and back to the malware client. To any intermediate observer, this was just a DNS lookup for an external domain. However, in reality the DNS query/response carried hidden information. The authoritative server in this case is the attacker’s server (not a legitimate one), so the attacker can respond with anything. Essentially, the firewall and public DNS see a query to an innocuously named domain and allow it, not realizing it’s a Trojan horse carrying data out. Over time, the malware will keep sending these queries to carry chunks of data or to poll for commands. The attacker’s name server will keep responding with the necessary info encoded in DNS responses. This covert communication can continue as long as the DNS traffic is not detected as abnormal. A few characteristics of malicious DNS tunneling traffic (as in Figure 2) contrast with normal DNS (Figure 1): the queries often contain long, random-looking subdomains (since they carry binary data encoded as text), the queried domain is often one that nobody in the organization would normally use, and the frequency of queries might be high (to send more data) or at odd intervals. These anomalies can be used to detect tunneling, which we’ll discuss next. But without specific DNS monitoring, those differences can easily be missed, allowing the tunneling to run unhindered.

DNS Tunnel Diagram

In the following parts of this series, we will dive deeper into why DNS tunneling is so dangerous for businesses and organizations, and why it remains relatively easy to execute even today. Understanding these risks is crucial for building a comprehensive cybersecurity defense.

To stay ahead of these threats, we invite you to start a free trial of SafeDNS today. Our advanced Protective DNS solution helps detect and block DNS tunneling activities, safeguarding your network and devices from covert attacks. Don’t wait until it’s too late. Secure your infrastructure with SafeDNS now.




About SafeDNS
SafeDNS breathes to make the internet safer for people all over the world with solutions ranging from AI & ML-powered web filtering, cybersecurity to threat intelligence. Moreover, we strive to create the next generation of safer and more affordable web filtering products. Endlessly working to improve our users’ online protection, SafeDNS has also launched an innovative system powered by continuous machine learning and user behavior analytics to detect botnets and malicious websites.

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.

The changing DNA of organized crime in Europe: key insights from the 2025 EU-SOCTA

Organized crime is no longer out on the streets—it has seeped into the very fiber cables that keep the internet running, creating new hybrid and wholly virtual threats that require unprecedented strategies to tackle. In March, Europol published the 2025 EU Serious and Organized Crime Threat Assessment, or the EU-SOCTA. It revealed that the DNA of organized crime has been undergoing serious shifts, posing threats that may be more dangerous and destabilizing than ever before.

EU-SOCTA 2025 at a glance

The EU-SOCTA is a report issued by Europol every 4 years that assesses serious and organized crime activities in the EU and the evolution of criminal tendencies and practices. It serves as the foundation for the EU’s strategic approach toward tackling serious and organized crime.

The data is extracted from Europol’s investigations and contributions from other law enforcement partners around the globe. The EU-SOCTA helps decision-makers, whether at the governmental, business, or individual level, to set priorities and to effectively prepare for and combat serious threats.

Europol is the EU’s law enforcement agency, focusing on combating serious international crime and terrorism in all Member States. It collaborates with other EU agencies and international partners to strengthen global security cooperation and share intelligence on ongoing threats.

For the 2025 assessment, Europol gathered data from thousands of law enforcement investigations and used the expertise of EU agencies and international organizations to create the most comprehensive analysis of serious and organized crime to date.

Destabilizing the Union

The 2025 EU-SOCTA makes it clear—as the world evolves, so does the DNA of organized and serious crime. The online space has become its new home and facilitator, as criminals increasingly rely on the internet to conduct their activities.

Switching their primary headquarters to the digital world—spaces like the dark web, social media platforms, and e-commerce sites—allows criminals to utilize digital tools for more malicious attacks. Developments in the tech world facilitate speedier execution on a larger scale and make it harder to track down perpetrators, particularly those relying on decentralized blockchain systems.

The report names the destabilization of the EU as one of the biggest threats posed by serious and organized crime. Criminal organizations aim to reduce trust in the legal system and government through the spreading of violence, illicit proceeds, and corruption. They rely on digital innovations like AI to conceal their activities and make it harder to trace crime back to its source.

The offender profile: younger and more violent than before

As the way the crimes are committed shifts, so does the profile of the criminal. As the 2025-SOCTA reveals, the criminals are becoming younger, more tech-savvy, and more brutal than before. In an interview with NordPass in 2024, Adrianus Warmenhoven mentioned that people working for cybercriminals may not know the nature of their work, instead assuming they’re hired as IT consultants.

The report notes the exploitation of younger perpetrators to conduct illegal trade and commit crimes for a reward. Young recruits—including minors—are preferred as they’re more willing to conduct illicit activities without financial reward. Blackmail is often used to maintain this working relationship.

Criminals use end-to-end communication services to plan and execute their attacks. Encrypted channels make it harder to intercept communication and offer anonymity, IP obfuscation, rotating IDs, or automatic message deletion after a set period of time.

One aspect remains largely unchanged: financial interest. Criminal networks use illicit means to fund their operations, whether via corruption or money laundering. Some may be working for hire, receiving funding from larger organizations to disrupt society and conduct their activities.

Part of the shift is relying less on legal tender and more on cryptocurrencies to funnel illicit funds. Cybercriminals use blockchain technology to transfer the money as crypto, making it harder for investigators to track down or recover. Crypto technology has also been combined with malware to bolster cryptojacking, a type of attack where a device is infected and hijacked to be used as a crypto mining machine.

Threat actors tend to start with smaller misdemeanors, building up the damage over time, leading to the so-called woodpecker effect. By acting small at first, they make it harder to see the bigger picture and prevent illicit actions in the early stages of organized attacks.

As these acts grow in scale, so does the use of violence. The report notes that violence related to organized crime has spilled over into public places, with a new service model emerging. Violence-as-a-service sees actors working with state agents or criminal organizations to promote and provoke violence in EU Member States and outside their borders. It involves both physical and digital activities, such as extortion, blackmail, and psychological violence.

Hybridizing crime: the online spills into the offline

The report’s title, “The changing DNA of serious and organized crime,” hints at the big shift over the years as new types of hybrid threats emerge, mixing a variety of criminal activities to maximize profits and success rates.

Europol notes a close link between the increasingly hybrid nature of serious and organized crime and recent geopolitical tensions. The intersection of online and offline criminal activities, technological advancements, and the role of state and ideological actors in these crimes create more dangerous threats and unprecedented challenges.

For criminals, each technological development is a new opportunity to increase their toolkit and create new, unpredictable threats. The internet has done a massive service to cybercriminals, who now rely on the dark web or decentralized blockchain networks to obfuscate their activities, infiltrate their targets, and participate in illegal data trades.

Some serious crimes aren’t even conducted offline anymore—every step, from the initial idea to its execution, is 100% online. In fact, Europol notes that nearly all forms of serious and organized crime have a digital footprint.

Through hybridization, criminal networks act more as proxies on behalf of other organizations or even hostile states to destabilize the EU and weaken its economy. The report lists fraud, child sexual exploitation, migrant smuggling, cyberattacks, waste crime, and trafficking of illicit goods and weapons as some of the key activities facilitated by hybrid threat actors.

Cybercrime expertise has become a requirement. Ransomware attacks have proven to be profitable, targeting high-profile businesses or government agencies. Such attacks can impact essential services, particularly those in the public sector, further sowing distrust in institutions.

The (continuous) emergence of artificial intelligence

As with seemingly all things tech lately, AI is the name of the cybercrime game. Europol lists AI developments and quantum computing among the potential accelerators for serious and organized crime, particularly given the rapid developments in these fields.

Despite their relative novelty, AI systems like large language models (LLM) and generative AI have already been put to practical use by criminal networks. Through AI tools, criminals can improve their efficiency, act more seamlessly, and perform operations that are harder to prevent or combat.

Generative AI, in particular, has been helpful thanks to its low entry level. Any criminal can put in a prompt to create a script in their chosen language, which can then be used for spoofing, creating deepfake materials, or otherwise facilitating illicit activities. AI-powered voice notes and video materials pose a high risk of identity theft.

AI has also broadened the scope of attacks even further. Although online attacks were already far-reaching, AI requires fewer resources than previously observed. Some cybercriminals have been utilizing AI to brute-force more complex passwords, making credentials that were previously considered relatively resistant to threats vulnerable.

Although quantum computing is still relatively theoretical, criminals already operate with the anticipation of its eventual practical application. Access to quantum computing may pave the way for more efficient and sophisticated decryption technology, which would make data currently protected by encryption algorithms easier to breach.

The timeliness of AI is both its advantage and its downside for criminals. Its applicability is still relatively limited, and if illicit AI use increases, developers will likely implement preventative measures. Legislation will catch up, too, as legal entities are already starting to implement policies that regulate AI usage.

For-profit cybercrime flourishes

Europol notes the emergence of crime-as-a-service, where criminals act as corruption brokers and use digital tools for profit-driven operations. Corruption remains one of the biggest threats to businesses and government institutions, “embedded in the very DNA of crime.” Due to its massive impact on economic systems, corruption is interspersed in practically every form of serious and organized crime.

Criminals rely heavily on money laundering to procure funds. The infiltration of legitimate funds for money laundering is high-risk, high-reward. Transactions require an intricate system of hard-to-trace financial systems. However, the biggest operations can generate as much as billions of euros, making them an intrinsic part of serious and organized crime.

Crime-as-a-service is favored by state actors. It can help sanctioned states circumvent financial embargoes. In exchange for illicit services, criminals may receive a safe haven in the state that hired them. Criminals—particularly those working fully online—receive access to resources funded by the state to conduct disinformation campaigns or supply chain disruptions. This grants state actors plausible deniability, as attacks are conducted by proxy, and the state’s involvement may be too obscure to be proven.

Social media accounts have also been broadly utilized for serious and organized crime, especially on political grounds. Criminals may create fake social media accounts—often referred to as troll farms—to spread misinformation or propaganda, manipulate the newsfeed, and further instill doubt and confusion.

Cash-intensive businesses are the target

Although it may appear that government agencies are all criminals care about, small and medium-sized businesses are just as lucrative as targets for serious and organized crime. In fact, the report lists business email compromise fraud as one of the most effective ways to extract data.

According to the EU-SOCTA, all business sectors are potentially at risk of being infiltrated or exploited by criminals. However, the 3 most affected sectors are construction and real estate, hospitality, and logistics.

In some cases, data holds more value than money. It’s treated as a commodity and is at the forefront of illicit trade. Its value is in its reusability. Possession of valuable information puts a massive target on the potential victims’ backs. If stolen, strategically important data can be sold for espionage, economic advantage, or used for coercion.

Large-scale data breaches often involve login credentials dating 5 years back or older. This puts breached organizations in a particularly vulnerable situation—they may not know that their data has been compromised until years later, when a folder containing terabytes of sensitive information suddenly appears on a dark web forum.

Europol emphasizes that protecting the victims is essential to successfully tackling serious and organized crime. One key way to achieve this is cutting off the funding source for serious and organized crime at its root. Although recovering assets can be complicated, shutting criminals out from accessing them in the first place has proven to be effective. Asset recovery has proven to deter cybercriminals from pursuing further operations, as they can’t reintegrate stolen assets into the mainstream economy.

How can you improve digital defenses against serious and organized crime?

The 3 core pillars of the new DNA of serious and organized crime are:

  • Destabilization of society through illicit proceeds and the use of proxies.

  • Nurturing of crime in online spaces.

  • Acceleration of crime thanks to AI and other emerging technologies.

The 2025 EU-SOCTA can paint a grim first impression of the current threat landscape. However, the situation is not hopeless. This research doesn’t just help Europol discover malicious agents faster and with more precision—it indicates the potential future trends, allowing businesses and individuals alike to prepare for evolving risks.

For businesses concerned about serious and organized crime, one of the best ways to stay protected is to conduct transparent operations in accordance with legal requirements and compliance policies, such as ISO-27001, NIST, or NIS2. Upon detecting suspicious activities that could be caused by serious and organized crime actors, companies should contact their legal authorities immediately.

Employee education also goes a long way. Ensure your organization is practicing proper digital hygiene and adhering to a strong and flexible password policy and secure credential usage and sharing norms. Keep your team aware of emerging threats, common scam tactics, and risks posed by AI-powered technologies.

Hybrid problems require hybrid solutions, and Nord Security offers you exactly that. Start proofing your business against complex cybercrimes with a custom-tailored cybersecurity bundle of NordPass, NordStellar, and NordLayer.

  • NordPass is a password manager that helps organizations handle and share sensitive data without compromising its integrity.

  • NordLayer is a network security, threat detection, and response platform that integrates seamlessly with any technology stack.

  • NordStellar is a threat exposure management platform that monitors the dark web, helping organizations stay ahead of cyber threats.

 

About NordPass
NordPass is developed by Nord Security, a company leading the global market of cybersecurity products.

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.