​​Barriers to Secure OT Communication: Why Johnny Can’t Authenticate​

CISA released “Barriers to Secure OT Communication: Why Johnny Can’t Authenticate,” guidance that addresses the persistent risks faced by critical infrastructure organizations that continue to rely on legacy operational technology (OT) protocols. 

Designed for reliability rather than protection against malicious cyber actors, these older protocols lack the essential safeguards needed to defend against modern cyber threats. The guidance provides insights into these vulnerabilities and offers practical recommendations to help organizations strengthen the security of their OT environments.