1.1.4 Ensure that 'Allow users to remember multi-factor authentication on devices they trust' is Disabled

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Information

Do not allow users to remember multi-factor authentication on devices.

Rationale:

Remembering Multi-Factor Authentication (MFA) for devices and browsers allows users to have the option to bypass MFA for a set number of days after performing a successful sign-in using MFA. This can enhance usability by minimizing the number of times a user may need to perform two-step verification on the same device. However, if an account or device is compromised, remembering MFA for trusted devices may affect security. Hence, it is recommended that users not be allowed to bypass MFA.

Impact:

For every login attempt, the user will be required to perform multi-factor authentication.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

From Azure Portal

From Azure Home select the Portal Menu

Select Azure Active Directory

Select Users

Click the Per-user MFA button on the top bar

Click on service settings

Uncheck the box next to Allow users to remember multi-factor authentication on devices they trust

Default Value:

By default, Allow users to remember multi-factor authentication on devices they trust is disabled.

See Also

https://workbench.cisecurity.org/benchmarks/10624