Overview

• Proton Authenticator is available now on iOS, Android, Windows, macOS and Linux, marking Proton’s first dedicated desktop 2FA offering.
• The open-source tool generates time-based one-time passwords offline and uses end-to-end encryption to sync codes across devices without internet access.
• Users can import and export TOTP seeds from other authenticator apps to ease migration and avoid vendor lock-in.
• The app operates without ads, trackers or a required Proton account, aligning with Proton’s commitment to user privacy.
• Automatic encrypted backups and optional biometric or PIN locking add additional protection as part of Proton’s expanding suite of privacy-focused services.