# two-factor-authentication

> 2FA reduces account compromise risk by adding a second proof beyond passwords, such as OTP codes, authenticator apps, or hardware keys.

Source: https://docs.applivery.com/en/glossary/two-factor-authentication/  •  Last updated: 2026-07-02

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**TL;DR:** 2FA adds a second verification layer to reduce unauthorized account access.

Two-factor authentication is an essential control in enterprise environments to mitigate credential theft and reduce the impact of password reuse.