Short answer: ITDR for a hybrid AD and Entra ID environment should monitor privileged accounts, authentication anomalies, risky sign-ins, directory changes, legacy protocols and identity activity that crosses cloud and on-premises systems. The service should also define who investigates alerts and which containment actions can be taken.
Why hybrid identity changes the security problem
Hybrid identity connects cloud access with an on-premises directory. That supports productive work, but it can also let one compromised account affect email, cloud applications, endpoints and internal systems. Monitoring only endpoints or only cloud sign-ins can leave important context disconnected.
What effective ITDR should cover
- Privileged and administrative account activity
- Unusual authentication, impossible travel and risky sign-in signals
- Changes to groups, roles, federation and authentication methods
- Password-spray, credential abuse and legacy authentication patterns
- Service accounts and identities used by automation
- Correlation with endpoint, email, cloud and network telemetry
Questions to ask an ITDR provider
- Do you support both on-premises Active Directory and Microsoft Entra ID?
- Which identity logs and signals are included?
- Is monitoring continuous, and who performs alert triage?
- Can analysts disable an account, revoke sessions or require credential resets under an agreed process?
- How are privileged accounts and service identities reviewed?
- How does identity telemetry connect with MDR, SIEM and endpoint detection?
ITDR is an operating capability, not one product
A useful ITDR program combines identity configuration, telemetry, detection logic, analyst investigation and response authority. Evaluate the complete operating model rather than selecting a vendor only from a feature list.
Related: AI agent identity and access management, Microsoft 365 security baseline, and Managed Detection and Response.
Need guidance specific to your environment?
Start with a focused review of your current controls, monitoring coverage and response responsibilities.