Consistent procedures will avoid confusion that can lead to human and automation errors which increases an organization’s security risk. Having clear roles defined to identify the parties responsible for specific functions in Azure can streamline all the Security operations.
existing network security team
maintenance of Azure Firewall, Network Virtual Appliances (and associated
routing), WAFs, NSGs, ASGs, etc.
existing network operations team
network and subnet allocation
Server Endpoint Security:
IT operations, security, or jointly
Monitor and remediate server security (patching, configuration, endpoint security, etc.)
Incident Monitoring and Response:
security operations team
Investigate and remediate security incidents in SIEM
or source console:
- Azure Security Center
- Azure AD Identity Protection
GRC team + Architecture
Set Direction for use of Roles Based Access Control (RBAC), Azure Security Center, Administrator protection strategy, and Azure Policy to govern Azure resources
Identity Security and Standards:
Security Team + Identity Team Jointly
Set direction for Azure AD directories, PIM/PAM usage, MFA, password/synchronization configuration, Application Identity Standards
The above suggestions are based on the Azure Security Compass document.