A recent update to Azure Security Center includes these features:
Security Center in the Subscription blade
In the Azure Subscription blade, after you select a specific subscription, you can now select the Security tab for that subscription. It provides you with the most important security alerts and recommendations for that subscription. For more information, see Azure Security Center is now integrated into the subscription experience.
Integration with Rapid7 support for VMs
Security Center provides a vulnerability assessment for virtual machines. For vulnerability assessment recommendations, integration is now supported with Rapid7. Learn more: Vulnerability assessment in Azure Security Center.
Just-in-time access in the VM Configuration blade (preview)
To make it easier to keep your resources secure and take advantage of just-in-time access to resources through Security Center, you can now easily enable JIT VM access directly from the Configuration blade of each individual VM blade in Azure. To learn more about JIT VM access, see Manage virtual machine access using just in time.