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Authenticator Application

Authentication

A client generating OTPs for MFA.

Definition

An authenticator app stores a shared secret and computes OTPs (e.g., TOTP/HOTP) locally, providing a possession factor during authentication flows.

In plain English A client generating OTPs for MFA.

Why it matters: Local OTP generation avoids SMS weaknesses and reduces exposure to interception and SIM-swapping.

Example: TOTP codes displayed offline on a registered device.

Examples of apps that implement or relate to this privacy concept

2FAS Authenticator offers a privacy-conscious alternative in this category, with a stronger focus...

Aegis Authenticator offers a privacy-conscious alternative in this category, with a stronger focu...

Google Authenticator offers a privacy-conscious alternative in this category, with a stronger foc...

FreeOTP offers a privacy-conscious alternative in this category, with a stronger focus on data pr...