What Is Identity Threat Detection and Response (ITDR)?
Identity Threat Detection and Response (ITDR) is the discipline and tooling for detecting and responding to attacks that target identity itself: stolen credentials, account takeover, privilege escalation, and lateral movement. As identity became the primary attack surface, prevention alone stopped being enough, and ITDR fills the runtime gap.
Why prevention is not enough
Strong authentication and least privilege reduce risk, but attackers still get in through phishing, infostealers, and session hijacking. ITDR assumes breach and watches for the behaviors that follow.
What ITDR covers
- Directory protection for Active Directory and Entra ID, including misconfiguration detection and fast recovery.
- Runtime detection of anomalous authentication and account takeover using behavioral analytics (UEBA).
- Attack-path analysis to find how an attacker could escalate or move laterally.
- SaaS identity risk and exposed-credential intelligence.
ITDR vs ISPM vs CIEM
ISPM is the preventive posture side (find risky configurations before attack). CIEM right-sizes cloud entitlements. ITDR is the detection-and-response side at runtime. Mature programs use all three.
Where to start
Browse ITDR vendors, compare Silverfort vs Semperis, and read how to choose an ITDR solution.
Frequently asked questions
- What is ITDR?
- ITDR stands for Identity Threat Detection and Response: detecting and responding to identity-based attacks such as credential theft, privilege escalation, and lateral movement.
- How is ITDR different from EDR?
- EDR focuses on endpoints, while ITDR focuses on the identity layer, including directories like Active Directory and Entra ID, sessions, and privileged behavior.
- Why has ITDR become important?
- Attackers increasingly log in with stolen credentials rather than breaking in, so monitoring identity activity has become central to detection.