Joint Cybersecurity Advisory: AI-Generated Exploitation Scripts Targeting Siemens PLCs

On August 19, the NSA and partner agencies issued a joint cybersecurity advisory warning that threat actors are conducting reconnaissance and capability development against internet-exposed Siemens S7 PLCs in the US, using AI-generated exploitation scripts disguised as legitimate monitoring tools to read/write PLC memory and programs via the S7comm protocol. Critical Manufacturing, Energy, Water and Wastewater, Chemical, Food and Agriculture, and Commercial Facilities are the most targeted sectors; AI has dramatically lowered the expertise and time needed to develop working ICS exploits.