Testing for Weak security question/answer (OTG-AUTHN-008)
This article is part of the new OWASP Testing Guide v4.
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Often called "secret" questions and answers, security questions and answers are often used to recover forgotten passwords, or as extra security on top of password. They are typically generated upon account creation, and require the user to select from some pre-generated questions and supply an appropriate answer, or allow the user to generate their own question and answer pairs. Both methods are prone to insecurities.
Description of the Issue
...here: Short Description of the Issue: Topic and Explanation
Black Box testing and example
Testing for Topic X vulnerabilities: