Rockwell PLC Cyber Risks: 4,400+ Internet-Exposed Devices

**Rockwell PLC Cyber Risks:** Researchers identified 4,407 internet-exposed Rockwell/Allen-Bradley PLCs (many in U.S. water utilities), observed attempts to modify PLC logic and disrupt operations, and highlighted insecure configurations—notably cellular-connected devices and exposed EtherNet/IP (TCP 44818)—that increase the likelihood of operational-impacting intrusions; the report recommends removing direct internet exposure, securing remote access, replacing end-of-life devices, and continuous monitoring.