Users can import existing 2FA codes from other authenticator apps such as Microsoft Authenticator and Google Authenticator. The app operates independently, requiring no Proton account for use. The ...

Explore OTP generation algorithms like HOTP and TOTP. Understand their differences, security, and implementation for robust authentication in CIAM and passwordless systems.

Looking for a free two-factor authentication app that works across platforms? Proton Authenticator offers broad import ...

Proton has fixed a bug in the iOS version of its Authenticator app that logged users’ sensitive TOTP secrets in plaintext, ...