An organization uses proprietary software that requires security exceptions due to its legacy system. What are the two best methods to protect this software?

To protect proprietary software that requires security exceptions due to a legacy system, employing network segmentation and software updates is a highly effective strategy.

Network segmentation involves dividing a network into smaller, isolated segments to enhance security. By isolating the legacy system from the rest of the organizational network, the potential spread of a security breach can be minimized. This reduces the attack surface, limiting unauthorized access and ensuring that even if a compromise occurs, it does not easily propagate to other systems or sensitive data areas.

Software updates, while challenging for legacy systems, are crucial for patching vulnerabilities that attackers could exploit. Even if the software cannot be fully updated to the latest version, applying available patches or updates, wherever feasible, can significantly reduce its exposure to known vulnerabilities. Regularly updating any related software component can help maintain a baseline level of security.

Combining network segmentation with diligent software updates provides a layered defense. While the segmentation helps control access and exposure, software updates help mitigate specific risks, enhancing overall security posture in an environment with outdated systems.