Microsoft has made major investments in Azure and Azure Security. You can see it across all the Azure services, as well as their cloud-leading Azure Security Center. But they've made some major investments in Azure security information too. Makes sense. Security is the major issue that prevents people from fully adopting public cloud services. And finding security information has been difficult with Azure public cloud.
Looks like they're actually doing a lot with Azure security information. What are they doing? Check out the article Azure Security Information - What We've Done, Where We're Going to find out!