Specify the 'Hardened UNC Paths' value This policy setting configures secure access to UNC paths. If you enable this policy, Windows only allows access to the specified UNC paths after fulfilling additional security requirements. Counter Measure: Enable this policy and add the appropriate UNC paths to the list. Potential Impact: Enabling this policy setting may prevent the user from accessing a desired UNC path.

(1) GPO: Computer Configuration\Administrative Templates\Network\Network Provider\Hardened UNC Paths (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\NetworkProvider\HardenedPaths\