Iran APT Sabotages US PLCs: CISA Warns of Physical Risk

Jul 28, 2026

Headline image

The US government discloses an Iranian APT compromising internet-exposed PLCs in water and energy facilities, disabling safety logic to cause potential… The escalation is assessed as a direct response to geopolitical tensions among Iran, the United States, and Israel. The shift from public defacement in 2023 to silent sabotage of industrial control systems marks an operational turning point with potentially physical consequences. The actors gain initial access by exploiting PLCs and OT devices directly exposed on the internet. The advisory identifies five specific ports: 44818, 2222, 102, 502 for industrial protocols, plus port 22 for SSH modems. This exposure, typical of architectures that assume “security by obscurity,” eliminates any intermediary: the attacker interacts directly with the controller.

Source: deafnews.it