Authenticator Apps: A Tale of Three Different Approaches to Security

Google Authenticator and Microsoft Authenticator are two of the most popular authenticator apps, but Authy remains the go-to recommendation on security forums for its encrypted cloud backups. The three apps work in different ways, with Google Authenticator only starting to sync codes to the cloud in 2023, years after both rivals.

Authy discontinued its desktop app back in March 2024 and never brought it back, while Microsoft Authenticator is quietly becoming less of a code generator and more of a passwordless sign-in tool. Google Authenticator's simplicity as a feature may be a limitation for some users, who prefer the stronger recovery model offered by Authy.

The difference between the three apps becomes apparent when considering their backup models. While Google and Microsoft tie recovery to existing platform accounts, Authy stores encrypted TOTP seeds in Twilio's servers, but only accessible with a user-set backup password. This makes Authy's story the strongest recovery model among the three.

Security data shows that credential abuse is still a major weak point for many organizations and individuals, despite advancements in security measures. Verizon's 2026 Data Breach Investigations Report found that 39% of all breaches involved credential abuse, while Microsoft's telemetry indicates more than 97% of identity attacks rely on password spray or brute-force techniques.