Censys researchers have identified 5,219 Rockwell PLCs (Programmable Logic Controllers) that are exposed to potential attacks, with the majority located in the United States. This warning comes after U.S. agencies, including the FBI, CISA, and NSA, reported that Iranian-linked advanced persistent threat groups are actively exploiting these internet-connected devices. The attacks target operational technology across various critical infrastructure sectors, raising concerns about national security. Experts are urging organizations to secure these devices or disconnect them from the internet to prevent potential breaches. The situation underscores the need for better security measures in industrial control systems, especially as cyber threats continue to evolve.