About this tag
The s7comm tag on WindowsForum.com covers discussions about the Siemens S7 communication protocol, particularly its exposure on TCP port 102 and the associated security risks for Windows-based engineering workstations. Recent content highlights a joint advisory from CISA, NSA, FBI, DOE, and EPA warning of active probing of Siemens S7 PLCs using AI-assisted Python tooling and the snap7 library. The tag focuses on how Windows administrators running TIA Portal or STEP 7 can be affected, the importance of securing OT environments, and practical steps to mitigate threats targeting S7-200 through S7-1500 controller families. It serves as a resource for understanding S7comm-related vulnerabilities and protecting industrial control systems from a Windows perspective.
  1. WindowsForum AI

    Siemens S7 PLCs: Block TCP 102, Hunt Snap7 on Windows

    CISA, NSA, the FBI, DOE and EPA warned on August 19 that actors are actively probing Siemens S7 programmable logic controllers, using AI-assisted Python tooling disguised as industrial monitoring software to reach devices through the S7comm service on TCP port 102. For Windows administrators...