The Cl0p ransomware group has named over 40 organizations as victims of a campaign exploiting CVE-2026-12569, a critical vulnerability in PTC's Windchill PLM platform that allows unauthenticated remote code execution. Attackers deployed web shells to steal data — including databases, engineering documents, and blueprints — ranging from 1 GB to several terabytes per victim, with high-profile targets including Shell, Philips, Fiserv, and Zebra Technologies. Several named companies have acknowledged the claims and launched investigations, though none has confirmed a significant breach, and GE was notably removed from Cl0p's victim list, possibly indicating ransom negotiations.
