Barriers to Secure OT Communication: Why Johnny Can’t Authenticate
Summary
CISA released guidance on barriers to securing OT communication, focusing on the lack of adoption of security measures for legacy industrial protocols. The guidance, developed with OT manufacturers and asset owners, explores motivations for securing communication and the obstacles preventing successful adoption.
IFF Assessment
The article highlights vulnerabilities in critical infrastructure due to insecure legacy OT protocols, making it a problem for defenders.
Severity
Defender Context
This guidance highlights the ongoing challenges of securing legacy OT environments. Defenders need to be aware of the specific vulnerabilities in their OT protocols and the limitations preventing the adoption of security measures. Addressing these barriers is crucial for mitigating cyber threats to critical infrastructure.