What is the recommended practice to mitigate threats on removable media?

Mitigating threats posed by removable media is crucial in protecting Bulk Electric System (BES) Cyber Systems. The practice of detecting malicious code with an alternate cyber asset is a recommended approach because it allows for a level of separation and security when analyzing potentially compromised media. By utilizing a separate, isolated system, organizations significantly reduce the risk of introducing harmful malware directly into critical cyber system environments.

This practice involves scanning the removable media with a dedicated asset designed to identify and neutralize threats before the media is connected to any critical infrastructure. It aligns with established cybersecurity protocols and best practices, ensuring that any potential risks are addressed prior to further interaction with the primary systems.

Other options, such as connecting removable media directly to a BES Cyber System or using public USB ports for testing, would expose critical assets to increased risk and vulnerabilities. Ignoring notifications about the media disregards the potential threats and is not a responsible approach to cybersecurity. Detecting malicious code using an alternate cyber asset effectively maintains the integrity of essential systems while still allowing for necessary interactions with removable media.