OT Remote Access: Securing the Path to Physical Control

The same remote maintenance path can support a repair and later permit an unsafe control action. Explore vendor access, authorization and the path from an enterprise account to physical control. The episode examines how to constrain access according to the operational task. Related CUP episodes: Oldsmar Incident: When Maintenance Access Becomes the Attack Path Legacy VPNs in OT: Remote Access and the Cost of Disruption OT Emergency Access: Designing Secure Break-Glass Operations OT Session Hijacking: Revoking Trusted Engineering Access Zero Trust in OT: Secure Access Beyond the HMI OT Remote Access: Closing the Path When the Work Ends OT Session Theft: When a Token Bypasses the Jump Host AiTM Phishing: Why MFA Does Not Prevent Session Theft Control Plane Security: When Network Segmentation Is Rewritten Railway OT Segmentation: When a Network Change Opens the Boundary