Regular Network Security Scans at CERN

Regular security scans are conducted since January 2001 to detect and check the security of any devices connected to the CERN internal network using both standard and custom vulnerability scanners. Each scan will access any TCP and UDP port of devices connected to the General Purpose Network (GPN) or the Technical Network (TN). Devices of generic type "PLC" and connected only to the TN are excluded by default.

If security holes are found, instructions to fix them will be sent to the person responsible for the system, whose name can be viewed and updated at Network Connection Request Form. (This requires that the "Responsible" or "Main User" are correctly registered).