Ledger Warns of LTE Spy Chips Hidden in Devices Sold by CryptoBilis

Ledger has detailed a security incident involving devices sold by a vendor identified as CryptoBilis, which allegedly contained covert components capable of transmitting cryptocurrency wallet keys over a mobile network. According to the company's findings, the implanted chip used LTE connectivity, meaning it could send data even without a user connecting the device to a computer or Wi-Fi network. Hardware wallets are designed to keep private keys isolated from internet-connected devices, reducing the risk of remote theft. A chip capable of transmitting key material over a cellular network would undermine that core security premise.