ASVS-V6.3.3 Either a multi-factor authentication mechanism or a combination of single-factor authentication mechanisms, must be used in order to access…

Verify that either a multi-factor authentication mechanism or a combination of single-factor authentication mechanisms, must be used in order to access the application. For L3, one of the factors must be a hardware-based authentication mechanism which provides compromise and impersonation resistance against phishing attacks while verifying the intent to authenticate by requiring a user-initiated action (such as a button press on a FIDO hardware key or a mobile phone). Relaxing any of the considerations in this requirement requires a fully documented rationale and a comprehensive set of mitigating controls.