I'm a security coach with multiple clients. I provide security implementation, planning, and maintenance through Microsoft Defender. I use all the Defender products, including Defender for Identity, Defender for Office 365, and Defender for Cloud.
It's easy to integrate the solutions. You only need to go into the settings and switch on the connectivity to all the Defender for Endpoint connectivity telemetry. Microsoft documentation is thorough, and it walks you through all the necessary steps.
We're multi-client and multi-cloud. We're working with multiple organizations and departments, so it's complex. We have domains and sub-domains that we must account for on the deployment side. We also use Defender for ATP, which is the Defender for domain controllers.