OT Isolation as Attack Surface: Weaponizing CISA's Defense Guidance

CISA and the Australian Cyber Security Centre issued guidance on isolating OT during cyberattacks, but the article warns the controls can become a new attack surface if deployed poorly.

Attackers could abuse weak segmentation, shared credentials, unmonitored access paths, and legacy protocols to maintain access or move laterally during incident response.

The piece frames OT isolation as a defensive perimeter that needs strong access control, logging, and validation to avoid creating exploitable gaps in critical infrastructure.