Jun 17
Ledger Hardware Wallet Security: The Complete Technical Guide to Secure Element, Ledger OS & Clear Signing (2026)
Ledger hardware wallets protect private keys using a CC EAL6+-certified Secure Element chip, an isolated operating system called Ledger OS (formerly BOLOS), and a Secure Screen driven directly by that chip. The result: keys never leave the device, transactions are shown in human-readable form before signing, and no remote attacker can extract secrets even from a compromised computer. Most…