Disable: 'Port number Exclusions' This policy setting defines a list of TCP port numbers from which network traffic inspection will be disabled. Port numbers should be added under the Options for this setting. Each entry must be listed as a name value pair, where the name should be a string representation of a TCP port number. As an example, a range might be defined as: 8080. The value is not used and it is recommended that this be set to 0. Counter Measure: Configure this setting depending on your organization's requirements. Potential Impact: The list of TCP port numbers will be inspected and could impact performance.

(1) GPO: Computer Configuration\Administrative Templates\Windows Components\Windows Defender\Network Inspection System Exclusions\Port number Exclusions (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\NIS\Consumers\IPS\Exclusions\Ports\Nis_Consumers_IPS_Exclusions_Ports_Port_Number