How do you deal with Endpoint Security for legacy and unsupported devices and systems?

Organizations face 3 core challenges: 1. Lack of Security Architecture: Outdated Windows OSs and Linux distributions often have structural limitations that hinder modern security controls like endpoint detection and response (EDR) systems. 2. Unpatchable Systems: Legacy IT remains a host to exploitable vulnerabilities, even as new integrations are layered on top of old servers and devices. Well-known attack vectors, such as Internet Explorer vulnerabilities, still cause data breaches. 3. Automated Moving Target Defense: AMTD is a lightweight solution that morphs runtime memory, preventing threats proactively rather than reacting to them. Solutions like Morphisec Guard and Keep offer endpoint and server protection for legacy environments.

To start with conduct thorough inventory of all legacy and unsupported devices and system in network, document key details for each device. Assess risk associated with each legacy system. Prioritize system based on risk levels and business impact Isolate legacy system from rest of network using network segmentation, Implement strict access controls to limit who can communicate with the segments Virtualize legacy system to encapsulate them in controlled environment. Use sandboxing technique to run legacy application Apply available patches update from vendors. Enable logging on legacy systems use SIEM system to correlate events. Migrate data application from legacy systems,conduct regular backups provide training to staff on specific risks

As a cybersecurity professional, I've encountered numerous challenges when dealing with legacy and unsupported devices within an organization's network. In one particular scenario, we conducted a comprehensive inventory assessment using network scanners and asset management software to identify all endpoints, including legacy systems running outdated operating systems or unsupported software. This meticulous inventory allowed us to gain insights into the scope of the problem and prioritize our mitigation efforts effectively.

Here are ways to manage these endpoints: Regularly maintain & publish inventory list of legacy systems for proactive timelines to implement strict access control policies to restrict permissions and privileges for these devices. Educate all relevant stakeholders about the potential risks of legacy systems to initiate the process of replacing them in near future. For these legacy devices have hardening with patches and updates whenever possible. Segregate these legacy devices into separate network segments to limit access to critical systems to contain the impact of potential security incidents. Conduct regular audits and assessments to identify vulnerabilities, misconfigurations, and compliance gaps to remediate security issues.

In my experience, it is best to keep the legacy systems off the network altogether if possible. Even if the legacy OS was patched with everything available, it may still have vulnerabilities that may be discovered after the OS has fallen out of favor. That being said, it is possible to configure something like a highly restricted subnet that would allow the legacy systems to have network and Internet access but would severely limit the ability of users on those machines to do anything that could compromise the network. Restricted accounts, like not being able to install new software or visit harmful websites, would be a good place to start if you must have network access.

Hardening and protecting legacy and unsupported devices is crucial to mitigating security risks. In a recent project, we implemented a multi-layered approach to enhance the security posture of these devices. This included applying available patches and updates to address known vulnerabilities, deploying robust antivirus and anti-malware solutions to detect and mitigate threats, and implementing encryption mechanisms to safeguard sensitive data. Additionally, we enforced strict access controls and strong authentication measures to prevent unauthorized access and unauthorized modifications to the systems.

End user training is critical to endpoint security because all it takes is one user who ignores policy and procedures and decides (for whatever reason) to work around everything you have set up to protect the network to cause a disaster. Years ago I worked at a company that had a senior executive who ignored everything he was supposed to do and brought his (highly infected) work laptop to the office from home and then plugged it into the network and caused a cascade of security problems that consumed several entire work days (and caused me personally to pull an all-nighter) for four or five people. No one should be encouraged to think they are somehow exempt or above security procedures.

Evaluating the performance and future viability of legacy devices is essential for devising a strategic plan forward. In a recent assessment, we conducted a thorough evaluation of the legacy devices, considering factors such as their functionality, security risks, and cost-effectiveness. Based on our findings, we developed a phased transition plan that outlined the steps for gradually replacing legacy systems with modern, supported alternatives. By allocating resources and budget accordingly, we ensured a smooth transition while minimizing disruptions to the organization's operations.

One aspect worth considering is the importance of proactive monitoring and continuous improvement in endpoint security management. In our experience, implementing robust monitoring solutions and regular security assessments can help detect and mitigate emerging threats promptly. Additionally, fostering a culture of security awareness and ongoing training among users and administrators is paramount. By staying vigilant and adaptable in the face of evolving security challenges, organizations can effectively safeguard their networks and data assets against potential risks.

Make sure only the people who really need it can access our older systems. This cuts down on the chances for bad guys to get in. It's just one part of what can be done, along with checking what we've got and the risks, keeping things separate, making the most of any security updates we can, and beefing up our defenses with some good security software.