The reported hardware implant inside the Trezor Safe 5 allegedly reads information displayed on the screen, including the recovery phrase, and transmits it over a mobile network when plugged into power.

From the articleTrezor Warns of Compromised Hardware Wallet Following $93M Ledger Security ScareAlso in Trezor reveals Malaysian reseller sold wallet with spyware, Trezor warns of suspected crypto-theft implant in hardware wallet, Trezor Warns of Suspected Hardware Implant in One of Its Wallets Sold by CryptoBilis