PT AF allows you to prevent leakage of information about domain users, which may occur if an attacker manages to gain access to the Global Address Book in Skype for Business. For protection, the GAB reading in Skype for Business rule was created.

PT AF assigns the High severity and the info leakage tag to vulnerabilities detected by the rule. The vulnerability classification IDs are OWASP 2017-A3 and CWE-538.