Proton Authenticator is a new 2FA app with encrypted sync, offline support, and no lock-in — all completely free and open source.

Proton Authenticator works on desktop and mobile, syncs securely, and gives you full control with no creepy data collection required

Given the regularity of data breaches and the ubiquity of phishing schemes that aim to compromise your data, you should have multi-factor authentication (MFA) enabled on any account that offers this extra layer of security.