Modern access management maturity: what does your IAM programme miss?

TL;DR: Modern access management maturity serves as a practical mirror for security, platform, and DevSecOps teams evaluating human, NHI, and agent access across multi-cloud and on-prem environments, according to P0 Security. The deeper issue is not whether controls exist, but whether the programme can describe its current state honestly enough to close fragmented governance gaps.

NHIMG editorial — based on content published by P0 Security: Self Assessment: Modern Access Management Maturity by Kelsey Brazill

Questions worth separating out

Q: How should security teams use an IAM maturity assessment in practice?

A: They should use it to find where identity governance is fragmented, not to produce a vanity score.

Q: What breaks when NHI access lifecycle ownership is unclear?

A: Access tends to persist beyond its intended use because no one is accountable for revocation, rotation, or certification.

Q: When should organisations prioritise access visibility over adding more controls?

A: When multiple tools are touching the same identities but no team can explain which one is authoritative.

Practitioner guidance

• Map the current access lifecycle by identity type Separate human accounts, service accounts, API keys, certificates, and agent identities into distinct lifecycle paths so you can see where ownership, review, and offboarding are missing.
• Identify overlapping access controls List where secrets management, PAM, cloud IAM, and platform tooling all touch the same entitlement so you can remove duplicate approvals and conflicting policy sources.
• Assign named lifecycle owners Require one accountable owner for provisioning, rotation, certification, and decommissioning for each identity class, including NHIs that are created outside central IAM.

What's in the full article

P0 Security's full post covers the operational detail this analysis intentionally leaves for the source:

• The actual maturity checklist used to assess where teams sit on the Modern IAM Maturity Curve
• The specific prompts security, platform, and DevSecOps teams can use to identify fragmented or redundant controls
• The practical guidance behind the self-assessment mirror metaphor and how to use it in internal discussion
• The linked CISO's Field Guide to Unified Cloud Access for teams that want implementation detail

👉 Read P0 Security's self assessment on modern access management maturity →

Modern access management maturity: what does your IAM programme miss?

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