In brief

The SecurityWeek article collects real-world accounts from industrial control system and operational technology security specialists, showing how ICS environments often differ sharply from what policies and assumptions suggest. Experts described cases involving an Iranian-linked APT trying to move from IT into OT systems, a vulnerability scan that unexpectedly shut down turbines at a power plant, unauthorized software installed inside a secure facility, and supposedly isolated industrial servers that were reachable from corporate workstations and even the public internet.

Across the stories, the main lesson is that OT risk is frequently hidden by incomplete inventories, outdated systems, weak segmentation, shadow IT, default credentials, and misplaced confidence in physical isolation. Several examples show how better visibility revealed unknown assets, malware activity, exposed industrial devices, or ineffective firewall deployments. The article’s broader message is that industrial organizations need measured, environment-aware security practices rather than standard IT assumptions, especially because mistakes in OT can affect physical operations, safety, and business continuity.

Source: SecurityWeek

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