Hi Anthony, Yes - we support co-management within Microsoft Endpoint Manager between Intune and SCCM. You can see my reply to Bryan for more details: https://techcommunity.microsoft.com/t5/windows-events/windows-365-ask-microsoft-anything/ec-p/2572406/highlight/true#M555. On security stack, yes - you're welcome to "bring your own" security stack and we have had preview customers do that. That said, we have worked closely with the Microsoft Defender team to produce optimized configurations for Windows 365. Regards, Saud