Bitwarden now allows users to log into Windows 11 devices using passkeys stored in its vault, providing phishing-resistant authentication. The feature requires Entra ID-joined devices with FIDO2 security key sign-in enabled and a registered Entra ID passkey in the vault. It works by scanning a QR code with a mobile device to confirm access, removing passwords from the login process. This extends Microsoft's passkey provider API to the operating system's fundamental authentication layer.