Cybersecurity is a never-ending game of cat and mouse, with organizations perpetually hunting down vulnerabilities before bad actors can exploit them. For CISOs, crafting an effective vulnerability management strategy is less about chasing every single threat and more about prioritizing risks that pose the greatest danger to business operations.

A well-structured vulnerability management strategy isn’t just about patching software—it’s a systematic approach that encompasses identification, prioritization, remediation, and continuous monitoring. And, if done right, it integrates with broader security measures, including Network Access Control (NAC), to create a more robust defense posture.

Step 1: Establish a Clear Vulnerability Management Framework

Before diving into tools and tactics, CISOs must establish a framework that outlines how their organization will approach vulnerability management. This framework should include:

• Asset Inventory: Maintain an up-to-date inventory of all endpoints, applications, cloud resources, and IoT devices connected to the network.
• Threat Intelligence: Leverage external threat feeds, industry reports, and vulnerability databases (e.g., NVD, CVE) to understand emerging threats.
• Risk Assessment Criteria: Define how vulnerabilities will be assessed—based on CVSS scores, exploitability, business impact, and compliance implications.
• Defined Roles & Responsibilities: Ensure security teams, IT staff, and compliance officers know their responsibilities in the vulnerability management lifecycle.

By establishing a solid foundation, CISOs can create a repeatable process that adapts to evolving threats.

Step 2: Automate Vulnerability Discovery & Assessment

Given the scale of modern enterprise networks, manual vulnerability scanning is inefficient. Instead, CISOs should deploy automated vulnerability management solutions that continuously scan for weaknesses across all IT assets.

• Regular Scanning & Penetration Testing: Use automated vulnerability scanners like Qualys, Tenable, or Rapid7 to detect misconfigurations and security flaws.
• NAC-Enabled Device Posture Checks: A Network Access Control (NAC) solution can assess whether a device meets security compliance before granting access. If a device has outdated software or missing patches, NAC can block or quarantine it until remediation occurs.
• Cloud & Endpoint Protection: Ensure vulnerability scanning extends beyond traditional endpoints to include cloud workloads, mobile devices, and remote endpoints.

Automating vulnerability discovery reduces the likelihood of security gaps going unnoticed and ensures that vulnerabilities are addressed before they can be exploited.

Step 3: Prioritize and Remediate Based on Business Risk

Not all vulnerabilities are created equal. Some may be low-risk while others could lead to catastrophic data breaches. A successful strategy hinges on risk-based prioritization.

• Contextual Risk Assessment: Instead of treating every CVE as a crisis, focus on vulnerabilities that are actively being exploited or that affect business-critical applications.
• Patch Management & Exception Handling: Develop an efficient patching cadence for critical vulnerabilities while allowing exceptions for legacy systems that may require alternative mitigations.
• Zero Trust Network Access (ZTNA) & NAC Integration: By integrating NAC and ZTNA, organizations can limit the blast radius of an exploit by segmenting vulnerable or non-compliant devices into restricted zones until patches are applied.

Step 4: Implement Continuous Monitoring & Incident Response

Even with the best proactive strategies, vulnerabilities will still emerge. That’s why continuous monitoring and incident response must be core components of vulnerability management.

• Security Information & Event Management (SIEM): Use SIEM platforms to correlate vulnerability data with threat intelligence and detect signs of active exploitation.
• Endpoint Detection & Response (EDR): Deploy EDR solutions to monitor suspicious behavior that could indicate an attacker exploiting an unpatched vulnerability.
• NAC for Threat Containment: If an endpoint is compromised due to an unpatched vulnerability, NAC can dynamically isolate it from the network, preventing lateral movement and reducing the risk of further compromise.

Continuous monitoring ensures that vulnerabilities aren’t just identified but are also actively managed throughout their lifecycle.

Step 5: Enforce Security Policies & Educate Employees

Security isn’t just a technology problem—it’s a human one too. CISOs must implement policies that enforce security best practices across the organization.

• Device Compliance Policies: Use NAC to enforce security baselines such as endpoint encryption, antivirus software, and mandatory patch levels before granting network access.
• Employee Awareness Programs: Regularly educate employees on security hygiene, social engineering risks, and the importance of timely software updates.
• Third-Party & Supply Chain Security: Extend vulnerability management policies to vendors and partners who have network access.

By fostering a culture of security awareness and enforcing policies with NAC, CISOs can significantly reduce an organization’s attack surface.

Conclusion: NAC as a Force Multiplier for Vulnerability Management

A well-crafted vulnerability management strategy is about more than just scanning and patching—it’s about proactive risk reduction and continuous security enforcement. Network Access Control (NAC) plays a crucial role in enforcing compliance, segmenting risky devices, and mitigating the impact of exploited vulnerabilities.

By integrating NAC into their vulnerability management strategy, CISOs can ensure that only secure, compliant devices access the network, ultimately reducing exposure to cyber threats and improving overall security resilience.

In today’s threat landscape, vulnerability management is not optional—it’s essential. But with the right framework, automation, risk prioritization, and security controls like NAC, CISOs can transform vulnerability management from a reactive task into a proactive, strategic advantage.

Portnox Cloud closes 2024 with another award win for innovation in zero trust and access control.

Austin, TX – Dec. 19, 2024—Portnox, a leading provider of cloud-native, zero trust access control solutions, today announced that TMC has named Portnox Cloud a recipient of the 2024 IT Cyber Security Excellence Award.

TMC announced the 2024 winners in a press release on its website last week. According to TMC, this award highlights not only the technologies used but also best practices for successfully deploying cybersecurity solutions.

Network access control solutions often face criticism for being difficult to deploy, complex to manage, and expensive to maintain. Portnox Cloud addresses these issues as a cost-effective unified access control (UAC) solution that delivers passwordless authentication, access control, risk mitigation, and compliance enforcement for enterprise networks, applications and infrastructure. Additionally, as a fully cloud-native platform, Portnox Cloud eliminates the need for costly on-site appliances and on-going systems maintenance.

“Receiving the 2024 IT Cybersecurity Excellence Award from TMC is a proud moment for the entire Portnox team,” said Denny LeCompte, CEO of Portnox. “Portnox Cloud exemplifies our commitment to pioneering innovations that address the evolving access control and cybersecurity challenges across today’s dynamic IT environments while ensuring a seamless user experience for our customers.”

“Congratulations to Portnox for being honored with an INTERNET TELEPHONY Cybersecurity Excellence Award for innovation in IP communications,” stated Rich Tehrani, CEO, TMC. “The Portnox Cloud has demonstrated outstanding quality and has delivered exceptional, measurable, tangible results for its users. Not only do I look forward to seeing their future successes, I thank them for protecting their clients from crippling attacks.”

For a while, it seemed like drones were everywhere – you couldn’t spend a day at a park or go to an outdoor event without hearing the familiar whir of propellors starting up and buzzing over the crowd. Cool concert footage not withstanding, drone operators have often faced some contention with their right to fly, particularly with some notable incidents like the time a drone crashed into a bike race, causing one cyclist to crash (thankfully with only minor injuries,) or the time a drone operator buzzed a police helicopter during a manhunt.  Then the FAA stepped in, and there was less danger of a drone colliding with a commercial airliner.  However, there are still concerns about drones just falling from the sky and knocking you unconscious.

Despite all the concerns that led to regulations on where and how to fly drones, one thing that was not addressed was the concerns about drone security. Not the drones themselves being hacked—although that is actually upsettingly easy—but about using them to infiltrate networks.  

Enter the threat from above

As reported in The Register, it started with unusual activity on an internally hosted confluence page. When security personnel spotted this, they traced it to a MAC address on their corporate WiFi….that happened to match one logged in on a network several miles away. After verifying that the user was, in fact, working from home, they used a WiFi signal tracer to follow the signal this device was attached to….and it led them to the roof.

There, much to their surprise, they discovered a pair of drones.

One of them had a WiFi Pineapple.  Unlike the delicious fruit, this is a device used by security testers to test WiFi networks for weak spots.  Unfortunately, it’s also very useful to hackers who want to use it as a rogue access point.  Apparently, this particular drone had made a prior visit, during which it discovered a temporary, less-than-secure Wifi network that it was able to snoop on to get an employee’s credentials and MAC address.  Then, a couple of days later, it came back with a friend that had almost $15,000 of spying and hacking equipment with it – including a Raspberry Pi, a 4G modem, a laptop, and several extra battery packs.  The credentials the first drone had stolen a few days earlier were hard-coded into all of these tools.  

Thanks to their exceptionally vigilant security team, the attackers did not get much, including their drones back. 

Are the drones coming for all of us?

Realistically, probably not….this wasn’t a cheap endeavor, nor was it simple to plan and execute.  All told, the hackers spent a lot of money and put a lot of time and effort into this operation.  With the amount of customization, research, and lucky timing, it’s unlikely that this could be easily replicated.  The fact that the target of this hack was an unnamed financial institution suggests that it was only worth it to the hackers for the potential of an exceptionally large payout. Of course, this isn’t to say it couldn’t happen, but it’s not likely that armies of drones will be filling the skies to perch on the roof of your building and spoof your WifFi network any time soon.

What you SHOULD be worried about is that hackers rarely have to go to this much trouble to breach your network. When you look at other high-profile breaches like Okta and Cisco, the hackers simply had to gain access to an employee’s Gmail account. When Target was breached in 2013, it was via malware installed on an HVAC contractor’s laptop (not even an actual Target employee!). The sad truth is, with 81% of all data breaches caused by stolen, weak, or re-used passwords, hackers don’t have to put that much effort into getting access to your network.  

The lesson here is not that this happened, but that good security will protect you no matter where the threat comes from. Thanks to the vigilant efforts of the security team who noticed the odd activity right away, it didn’t happen – ultimately, the hackers didn’t really get anything of value.

Introduction to Cyber Monday Hazards

With the rise of digital commerce, Cyber Monday has become a focal point for online shopping, attracting consumers with unbeatable deals and offers. Unfortunately, this surge in online activity also draws the attention of cybercriminals seeking to exploit vulnerabilities in e-commerce platforms. Among the myriad threats, malware skimmers stand out as particularly dangerous. These malicious programs stealthily capture sensitive payment information, such as credit card numbers and personal details, during online transactions. As cybercriminals become increasingly sophisticated, the threat landscape evolves, making it imperative for both consumers and businesses to understand the nature of these risks. The stakes are high, and the need for robust cybersecurity measures has never been greater.

Comprehending Malware Skimmers

Malware skimmers are sophisticated threats designed to surreptitiously capture payment details during online transactions. These malicious programs are typically injected into e-commerce websites, lying dormant until users enter their payment information. Upon capturing sensitive data, such as credit card numbers and personal details, the skimmers transmit this information to cybercriminals. This threat is especially concerning as it often goes undetected by both consumers and website operators. The methods employed by these skimmers include exploiting vulnerabilities in website code or compromising third-party plugins. Understanding how these malicious entities operate is crucial for developing effective countermeasures and ensuring a safer online shopping experience.

Recent Developments in Malware Skimming

Cybercriminals have increasingly refined their techniques in recent years, making malware skimmers more sophisticated and harder to detect. Notable incidents have impacted major companies, showcasing the persistent threat these skimmers pose to the e-commerce sector. A significant rise in malvertising incidents has been observed, particularly in the United States, which saw a 42% increase month-over-month last fall. Similarly, an uptick of 41% was observed from July to September this year. These statistics underscore the growing menace of malware skimmers. The ongoing evolution of these malicious programs necessitates a heightened level of vigilance and a proactive approach to cybersecurity. Advanced skimming techniques now exploit vulnerabilities in website code and third-party plugins with greater efficiency, emphasizing the need for continuous monitoring and updating of security protocols. As cybercriminals adapt, so must our strategies to counteract these evolving threats.

Safeguarding Your Personal Data

Proactively defending your personal data requires a multi-layered approach. Begin by cultivating a habit of using strong, unique passwords for every online account. Incorporate a mix of letters, numbers, and symbols to enhance complexity. Implement two-factor authentication wherever possible, adding an additional safeguard that requires a second form of verification before granting access. Regularly update all devices and software to protect against the latest threats. Utilize reputable antivirus and anti-malware programs to scan for potential vulnerabilities. Be cautious about sharing personal information and only provide details to trusted sites. Employing a secure VPN can also add a layer of protection when accessing the internet from public networks.

Secure Online Shopping Habits

Maintaining secure online shopping habits is vital in defending against malware skimmers. Begin by verifying that the websites you shop on are reputable and use robust encryption protocols, typically indicated by a padlock symbol in the address bar. Always ensure that your devices, browsers, and security software are current, as updates often include patches for vulnerabilities that could be exploited by malware skimmers. Avoid using public Wi-Fi for transactions, as these networks are often less secure and can be easily exploited by cybercriminals. Utilize a secure VPN when accessing the internet from public places to add an extra layer of security. Be cautious with emails and links, as phishing attempts can lead to malicious websites designed to steal your information. It’s also prudent to use credit cards instead of debit cards for online purchases, as credit cards generally offer better fraud protection. Taking these steps will significantly bolster your defenses against the ever-evolving threat of malware skimmers, ensuring a safer and more secure online shopping experience.

Identifying Indicators of a Compromised Website

Identifying indicators of a compromised website is essential for steering clear of potential threats. Be wary of unexpected pop-ups or intrusive advertisements, which may signify a breach. Unusual URLs, particularly those with misspellings or extra characters, can also be red flags. Observe the website’s layout and functionality; inconsistencies or slow loading times might indicate malicious interference. Hover over links to preview their destinations and ensure they align with legitimate domains. Browser security warnings should never be ignored, as they often provide critical alerts about potential risks. Additionally, the absence of HTTPS encryption, usually indicated by a padlock symbol in the address bar, can point to inadequate security measures.

Reacting to a Cybersecurity Threat

Upon suspecting a cybersecurity breach, swift and decisive action is crucial to mitigate damage. Initially, contact your financial institutions to inform them of potential fraudulent activity. They can assist in freezing accounts, issuing new cards, and monitoring for suspicious transactions. Additionally, change your passwords for any affected accounts, ensuring they are strong and unique to prevent further unauthorized access.

Next, report the incident to relevant authorities, such as the Federal Trade Commission (FTC) or your local cybersecurity agency. Providing detailed information about the breach can aid in broader efforts to combat cybercrime. It is also advisable to alert the affected e-commerce platform so they can investigate and address any vulnerabilities.

In parallel, conduct a thorough scan of your devices using reputable antivirus and anti-malware software to detect and eliminate any lingering threats. Regularly updating your security tools ensures they are equipped to identify the latest malware variants.

Consider placing fraud alerts or credit freezes on your credit reports through major credit bureaus. This adds an extra layer of protection, making it more challenging for cybercriminals to open new accounts in your name.

Educate yourself and stay informed about common cyber threats and preventative measures. Being proactive and knowledgeable can significantly reduce your risk of future incidents. Engage with cybersecurity communities and forums to share experiences and learn from others.

Finally, evaluate and strengthen your overall cybersecurity posture. Implementing multi-factor authentication, using a secure VPN, and maintaining vigilant online practices can fortify your defenses against evolving threats. By taking comprehensive and immediate steps, you can safeguard your personal information and contribute to a more secure digital environment.

Remaining Vigilant in an Increasingly Digital Society

Cyber Monday offers unparalleled opportunities for online shopping but also exposes consumers and businesses to the hidden dangers of malware skimmers. These stealthy threats underscore the importance of vigilance, robust cybersecurity measures, and secure online practices. By recognizing the evolving tactics of cybercriminals and adopting proactive defenses—such as strong passwords, two-factor authentication, secure VPN usage, and careful scrutiny of websites—individuals can protect their sensitive information during transactions.

For businesses, maintaining up-to-date security protocols, monitoring for vulnerabilities, and educating customers about safe practices are vital steps in minimizing risk. The growing sophistication of malware skimmers requires a collective effort to enhance cybersecurity awareness and resilience. By staying informed and prepared, we can outpace cybercriminals and ensure that the benefits of digital commerce continue to outweigh the risks.

Phishing attacks have become an epidemic. Approximately 3.4 billion phishing emails are sent worldwide each day, making it the leading attack vector in 41% of all data breaches. And it’s not just e-mail—phishing has expanded to voice, text, social media, and even fake websites, targeting users across multiple platforms to steal sensitive information and compromise accounts.

The aim of a phishing scam is to steal your credentials, and it’s no wonder why—according to Verizon, 86% of data breaches in 2023 involved compromised credentials.  And AI is making the various phishing schemes easier than ever – from improving the quality of the e-mails themselves and removing the tell-tale grammatical errors to using fake voices in vishing scams, the effectiveness of these scams is only increasing.  

Below, we explore the different types of phishing and how they work, and then discuss how you can protect yourself from this ever-growing threat.

Classic Phishing Attacks

Classic phishing attacks typically involve deceitful emails designed to trick recipients into revealing personal information or clicking malicious links. These emails often mimic legitimate companies or organizations to gain the victim’s trust. Google intercepts around 100 million phishing emails daily, but that leaves quite a few still making it through. Telltale signs of a phishing e-mail are links that do not look right (perhaps a misspelled domain name like amazone.com or extra words like amazon.customersupport.com), some odd grammar choices, and a sense of urgency that seems out of place (“update info now or your account will be disabled!”)

SMShing (or Smishing)

“You won a $1,000 gift card!” “USPS cannot deliver your package, click here to update your address!” “Unusual activity detected on your bank account!”  Chances are, you’ve gotten a text message like that, which is an attempt at SMShing, or phishing via SMS.  Like e-mails, they often contain an unusual sense of urgency and some misplaced links, but the link shorteners commonly used in legitimate text messages make these harder to spot.  Always go directly to the company’s website to confirm any messages asking you to do anything (and any US government entity like the USPS or IRS) is not going to communicate with you solely via text.

If you’re in the US, did you know you can forward SMShing messages to the FTC?  Send to 7726 (AKA SPAM on your phone’s keypad) and it will help your wireless provider identify and block these messages in the future.  

Vishing

Vishing (short for “voice phishing”) is a type of phishing attack that uses voice communication, typically phone calls, to deceive victims into revealing sensitive information, such as login credentials, financial details, or personal data.   A very common one in the US purports to be from the IRS, threatening penalties and jail time due to back taxes.  This one has been around for a while – a viral video from 2018 shows a police officer in Midland, Texas talking to a scammer who tells him to clear his back taxes by buying Apple gift cards or the police would be en route to arrest him within 45 minutes.    

Spear Phishing

Spear phishing is a refined and highly targeted form of phishing that requires more effort and research from the attacker. Unlike general phishing, which casts a wide net hoping to snare any unsuspecting victim, spear phishing focuses on specific individuals or organizations. Attackers gather detailed information about their targets to create highly convincing messages that appear legitimate and relevant.

These attackers often utilize information from social media profiles, company websites, and other publicly available sources to customize their approach. The crafted messages may reference recent activities, personal interests, or professional responsibilities, making them difficult to distinguish from genuine communications. This personalization increases the chances of the victim being deceived.

For instance, an attacker targeting an executive might send an email that appears to be from a trusted colleague or business partner. The message might discuss a recent meeting or project, encouraging the recipient to click on a link or download an attachment. Once the victim takes the bait, they could unknowingly download malware or reveal sensitive information, potentially compromising the entire organization.

Spear phishing is not limited to email. Attackers may also use phone calls, social media messages, or even physical mail to carry out their schemes. Given the targeted nature of these attacks, they can have severe consequences, including data breaches, financial loss, and reputational damage.

Recognizing and defending against spear phishing requires a keen eye and a proactive approach. Employees should be trained to scrutinize unexpected communications, even if they seem to come from known contacts. Encourage staff to verify the legitimacy of suspicious messages by contacting the sender through a different, trusted method.

In addition to awareness training, employing technical defenses can help mitigate the risk of spear phishing. Advanced email filters, multi-factor authentication, and robust cybersecurity protocols add layers of protection. By combining vigilance with technological safeguards, individuals and organizations can better protect themselves against the sophisticated tactics of spear phishers.

Whaling

A whaling attack is a highly targeted phishing attack aimed at high-level executives, such as CEOs, CFOs, or other senior leaders within an organization. The goal is to deceive these individuals into sharing sensitive information, transferring funds, or granting access to confidential systems.  Unlike the first two methods, these attacks are often carefully crafted to appear legit, banking on busy executives who may get careless with doing their due diligence.  In addition to the usual compromised credentials, they might also target intellectual property or strategic competitive intelligence (but they’re not above wire fraud, either!)

Clone Phishing

Clone phishing is a type of phishing attack in which a legitimate email or message that the victim has previously received is copied (“cloned”) and slightly altered by an attacker. The goal is to trick the recipient into believing the new, fraudulent message is a genuine follow-up or update.  

This might not seem different than regular phishing, but the key is that it’s coming from a trusted source.  For instance, during the Okta breach, the targets were customers who had actually used Okta support recently.  Since they might be expecting a message from Okta, the recipients might have understandably not been as vigilant as normal in spotting any irregularities.  

Angler Phishing

Angler phishing is a type of social media phishing attack in which cybercriminals impersonate customer service accounts to deceive users into revealing sensitive information or downloading malware. The term “angler” comes from the way attackers “fish” for victims on social platforms.  When you consider that messaging company accounts on Facebook and/or Twitter has become an established way to get better support than going through traditional channels like phone or e-mail, this type of attack targets users who are already frustrated (and thus perhaps more likely to be careless.) 

Reducing Phishing Risks with Passwordless Login

Transitioning to passwordless certificate-based authentication is a promising strategy to counter phishing attacks. This method uses certificates for authentication, eliminating the need for passwords altogether. This means attackers cannot steal passwords through phishing, significantly reducing the risks of compromise.

In addition to a higher level of security, passwordless authentication simplifies the login process for users. Instead of remembering complex passwords, authentication is handled through the secure exchange of cryptographic keys, where a digital certificate issued by a trusted authority verifies the user’s identity. This enhances security and improves the user experience, making it more convenient and efficient.

Organizations adopting passwordless authentication can benefit from reduced helpdesk calls related to password resets and improved compliance with security policies. This transition also aligns with modern security standards and best practices, positioning organizations ahead of evolving cyber threats.

Embracing passwordless authentication can fortify your defenses against phishing and other cyberattacks, paving the way for a more secure and user-friendly digital environment.