Crypto hardware wallet provider Ledger has clarified its firmware capabilities following a controversial tweet on May 17, which was later deleted. The tweet had stated that it was “possible” for Ledger to write firmware that could extract users’ private keys. In response, Ledger’s chief technology officer, Charles Guillemet, confirmed via a Twitter thread that the wallet’s operating system requires the consent of the user any time “a private key is touched by the OS”. However, Guillemet also stated that using a Ledger wallet requires “a minimal amount of trust”. The system requires users to confirm their consent to use every key and third-party apps installed on Ledger allegedly can’t use a person’s private key without input from the user.