Topic starter
16/01/2026 1:17 pm
TL;DR: Identity blind spots, especially around non-human identities, shadow accounts, misconfigured entitlements, and leaked secrets, leave organisations exposed even after heavy IAM, PAM, and IGA investment, according to Hydden. The operational assumption that traditional tools already see the full identity estate is no longer reliable, so discovery and risk-based prioritisation become the real control layer.
Editorial analysis by NHI Mgmt Group, based on content published by Hydden: “Measuring the ROI of Proactive Identity Attack Surface Management (IASM)”.
Key questions
Q: What breaks when identity tools cannot see each other's access data?
A: Access reviews, privilege cleanup, and offboarding all become incomplete because each tool only sees local entitlements.
Q: Why do hidden identities increase breach risk so quickly?
A: Because an unseen identity cannot be recertified, revoked, or monitored in the normal governance cycle.
Q: How can teams tell whether identity attack surface management is working?
A: It is working when the number of high-risk identities falls, exposed credentials are retired faster, and reachable privileged paths shrink over time.
Practitioner guidance
- Implement continuous identity discovery Move beyond periodic reviews and inventory snapshots by continuously discovering human and non-human identities across cloud, SaaS, on-premises, and legacy systems.
- Map identity relationships and attack paths Correlate identities with entitlements, activity, and resource relationships so you can see toxic combinations, privilege escalation paths, and blast-radius exposure.
- Prioritize remediation by real exposure Score dormant accounts, overprivileged roles, exposed credentials, and shadow identities by actual access scope and likelihood of abuse, then remediate the highest-risk items first.
Bottom line: Identity programmes can look mature while shadow accounts, exposed secrets, and misconfigured entitlements remain outside central governance.
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11/10/2026 1:36 am
Identity attack surface management is becoming the missing control layer between discovery and governance. IAM, PAM, and IGA are necessary, but they do not solve the problem of identities that have never been fully discovered or inventoried. Once discovery is incomplete, every downstream control inherits that blind spot. The practitioner conclusion is simple: security teams must govern the full identity fabric, not only the identities already inside their tools.
A few things that frame the scale:
- NHIs outnumber human identities by 25x to 50x in modern enterprises, according to the Ultimate Guide to NHIs.
A question worth separating out:
Q: Should organisations treat access reviews as proof of identity security?
A: No. Access reviews prove that a controlled process ran over a defined population, but they do not prove the population is complete or that risky identities have been found. In an incomplete identity estate, review completion can coexist with substantial unmanaged exposure.
👉 Read our full editorial: Identity attack surface management exposes the cost of blind spots