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OT Vendor VPN Security: Closing Hidden Maintenance Paths | CUP Focus
A VPN can authenticate a supplier while still bypassing the architecture intended to protect production. This CUP Focus shows how flat VLANs, direct Level 1 access and encrypted blind spots can turn legitimate maintenance into an invisible attack path.
Related CUP episodes:
Legacy VPNs in OT: Remote Access and the Cost of Disruption
OT Remote Access: Closing the Path When the Work Ends
OT Session Hijacking: Revoking Trusted Engineering Access
OT Remote Access: Securing the Path to Physical Control
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