Cortex XDR and Microsoft Defender Coexistence and Performance

[omonroy502642]

Hello Cortex XDR Community,


We recently  were asked to have official guidance regarding the coexistence of Cortex XDR Agent and Microsoft Defender on Windows endpoints.

My questions to the community and experts is:

- Is the coexistence of Cortex XDR and Microsoft Defender Antivirus officially supported?

- Is the coexistence of Cortex XDR and Microsoft Defender for Endpoint (MDE) supported?

-When Cortex XDR is installed, does it automatically disable Microsoft Defender Antivirus, or can both solutions remain active simultaneously?

- Are there any known limitations, performance impacts, or best practices when running both products on the same endpoint?

- Is there any official documentation or configuration guide describing the recommended deployment model for organizations using both Cortex XDR and Microsoft Defender technologies?

Thank you