Submission + - Ledger confirms spy chip implant behind wallet crypto thefts (bleepingcomputer.com)
"Under the battery and antenna sits an ST STM32G431KBU6 (Arm CortexM4, 128 KB flash, UFQFPN32)," the researchers found inside one of the devices. For connectivity, the actor used "a tiny eSIM, an 8pad package just 2×2 mm, next to the MCU, and a shielded LTE module that sends the words out."