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Avoid knowledge-based authentication

Requirement#

Password hints and knowledge-based authentication, such as secret questions, should not be enabled.

Description#

Password hints often offer enough information for an attacker to guess a user's password. Answers to secret questions are sometimes information that is publicly available or that can be found on social media. Therefore, these mechanisms should not be part of the authentication process and should not be used in the password recovery process either.

References#