If your organization operates internet-facing programmable logic controllers (PLCs) from Rockwell Automation, Schneider Electric, or Siemens and you haven't reviewed your remote access configurations recently this post is for you. On April 7, 2026, CISA, the FBI, NSA, EPA, and the Department of Energy issued a joint advisory warning that Iranian-affiliated advanced persistent threat (APT) actors are actively exploiting internet-connected operational technology (OT) devices ac