This setting specifies the number of past PINs that can be associated to a user account that cant be reused. This policy enables administrators to enhance security by ensuring that old PINs are not reused continually. PIN history is not preserved through PIN reset. The value must be between 0 to 50 PINs. If this policy is set to 0, then storage of previous PINs is not required. Default: 0. Counter Measure: Configure this setting depending on your organizations requirements. Potential Impact: PINs will need to be unique over the specified history. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Microsoft Passport for Work\PIN Complexity\History (2) REG: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity!History