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How "Remember this browser for 30 days" for 2FA works

Overview

On the login screen, where users enter their two-factor authentication (2FA) code, there is an option to "Remember This Browser for 30 Days." This article explains in detail how this feature works and when users might still be prompted for MFA.

remember_browser.png

 

What You Need To Know

The "Remember This Browser for 30 Days" feature applies to the Multi-Factor Authentication (MFA) step. When enabled, it allows users to skip the additional authentication on the browser they currently log in from for the next 30 days.

However, in certain cases, this setting may be overridden due to security or technical reasons, requiring users to re-enter their MFA code before the 30-day period ends. These cases include, but are not limited to:

  • The browser's cookies were cleared.
  • The user has not logged in for seven consecutive days.
  • The browser does not store cookies or has session storage disabled.
  • The user is logging in using Incognito/Private Browsing mode.

In case the user wants to deactivate the feature and be prompted for the MFA step on their next login they have to:

  1. Log In
  2. Visit the User Settings -> Security Page
  3. Click the Forget all remembered browsers button and confirm the action.

 

Conclusion

The "Remember This Browser for 30 Days" feature helps speed up the login process, but users may still be asked to re-enter their MFA code for security or technical reasons.

For more information on the 2FA methods offered by Twilio and how to add a new one for your users logins, check out this article.

 

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