Topic starter
02/02/2026 8:36 pm
TL;DR: Identity systems like Active Directory and Entra ID are increasingly targeted for persistence, privilege escalation, and ransomware spread, and standard IR is not enough when attackers can re-enter through identity backdoors, according to Semperis. Secure recovery now has to prove the environment can be trusted again, not just restored.
Editorial analysis by NHI Mgmt Group, based on content published by Semperis: “Introduction to Identity Forensics & Incident Response (IFIR)”.
Key questions
Q: What breaks when incident response is not tied to identity governance?
A: When response is disconnected from identity governance, teams may detect an incident but fail to trace which account, credential, or approval path enabled it.
Q: Why does identity compromise create a longer recovery problem in hybrid environments?
A: Hybrid environments extend identity trust across on-premises and cloud services, so compromise in Active Directory can carry into Entra ID and connected SaaS access.
Q: How should teams decide between brownfield recovery and a greenfield rebuild?
A: Teams should choose brownfield recovery only when they can remove attacker breadcrumbs and weak configurations well enough to trust the existing directory again.
Practitioner guidance
- Audit identity backdoors before declaring recovery complete Search for ACL-based persistence, SID history injection, SYSVOL changes, Kerberos delegation abuse, Group Policy manipulation, and ADCS or PKI footholds before returning identity services to production.
- Validate hybrid trust paths after any directory compromise Check the links between on-prem Active Directory, Entra ID, and any synchronised SaaS access so an attacker cannot pivot from one identity layer to another after restoration.
- Define recovery success as renewed trust, not uptime Require evidence that the identity estate is clean enough to trust again, including elimination of attacker breadcrumbs and weak configurations, before re-enabling normal operations.
Bottom line: Identity incidents are different because the attacker may leave durable control points in the directory, not just malware on hosts.
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This topic was modified 4 days ago by NHI Mgmt Group
08/10/2026 4:41 pm
Identity recovery is now an IAM resilience function, not just an incident response task. The article is right to separate ordinary DFIR from IFIR because identity compromise changes what “recovered” means. A directory that boots successfully can still be unsafe if privilege remnants, backdoors, or trust-path abuse remain. The practitioner implication is that recovery success must be defined by renewed trust in identity state, not by service availability alone.
A question worth separating out:
Q: What evidence shows an identity environment is safe to bring back online?
A: A safe return requires proof that the compromise paths have been removed, not just that systems are running. Practitioners should look for closed persistence routes, cleaned directory state, and no surviving trust path that would let an attacker regain access after restoration.
👉 Read our full editorial: Identity forensics and incident response is now core IAM resilience