Block, Baseline, or Harden: Defending Siemens S7 PLCs
AI-written exploit scripts now masquerade as OT monitoring on the S7comm wire. Three defensive postures, and where each earns its keep.
Field Notes · Topic
PLC hardening
Articles tagged “PLC hardening” on the Zoniax blog — field notes on industrial operations intelligence.
When Your PLC Faces the Internet
Seven U.S. agencies updated their advisory on attackers rewriting the logic inside internet-exposed controllers; read from the control room, it's a story about an open door and a project file you filed as a backup.