NSA Issues Zero Trust Guidance for Defense Operational Technology

The National Security Agency (NSA) released new guidance on Oct. 8 for applying zero trust security principles to operational technology (OT) systems supporting defense, national security, and critical infrastructure missions. The guidance aims to help system owners and operators reduce the risk of unauthorized access, lateral movement, and persistent adversary activity in OT environments, where legacy equipment and mission-specific systems can make traditional cybersecurity protections difficul