Azure Security Center is an advanced, unified security management platform that Microsoft is offering to all Azure subscribers. Standard features include security surveillance for both cloud and on-site workloads; security threat blocking through access and app controls; adjustable security policies to maintain compliance with regulatory and standards; security vulnerability discovery tools and patches; and advanced threat detection through security alerts and analytics.

Approach to the hybrid cloud
If managing the security of your Azure-only deployments is your sole concern, Azure Security Center will provide services that cover security policy, assessments, recommendations and related partner solutions. However, if you have hybrid deployments (whereby Azure connects to your on-site implementations). This hybrid cloud approach greatly simplifies the discovery and assessment of security threats by consolidating all your security data from both Azure-cloud and connected on-site deployments into a single, searchable UI with on-site analytics and a wealth of security tools.