Security teams should measure how many identities were created for the programme, how many were retired at each milestone, and how many integrations still rely on temporary access. Those figures show whether governance is keeping up with the transformation or whether exceptions are accumulating faster than review cycles can remove them.
Why This Matters for Security Teams
An insurance platform transition changes more than applications and data flows. It also changes who and what can act inside the environment. New carriers, brokers, adjusters, claims processors, APIs, and migration tools often require fresh service accounts, temporary secrets, and elevated access paths. If teams only track project delivery milestones, they can miss the operational reality: identities accumulate faster than governance can retire them, and exceptions become the default control surface.
This is why measurement matters. Security teams need to quantify identity creation, retirement, and temporary access use so they can see whether the transition is shrinking risk or simply relocating it. NHIMG research shows that only 5.7% of organisations have full visibility into their service accounts, while 97% of NHIs carry excessive privileges, which is a strong indicator that transformation programmes often leave behind unmanaged access debt. The broader control model should align to the NIST Cybersecurity Framework 2.0 and NHIMG guidance in the Ultimate Guide to NHIs.
In practice, many security teams discover their biggest exposure only after a migration wave has already created hundreds of short-lived access paths that nobody fully owns.
How It Works in Practice
For an insurance platform transition, the right metrics are lifecycle metrics, not just security event counts. Security teams should measure how many non-human identities are created for each workstream, how many are still active after a milestone closes, how many are tied to third parties, and how many integrations still depend on temporary access. Those figures reveal whether the programme is creating a controlled identity inventory or a growing backlog of exceptions.
A practical measurement model usually includes:
- new service accounts, API keys, OAuth grants, and certificates created per migration phase
- temporary access approvals issued, plus the percentage converted to standing access
- retired identities, revoked secrets, and disabled integrations at each milestone
- open exceptions older than the planned migration window
- unowned identities or identities with no verified business sponsor
These measurements should be tied to inventory and ownership, not only to ticket closure. The operational question is not whether a project task finished, but whether the related access was actually removed. That is especially important in insurance environments where claims systems, underwriting platforms, partner portals, and policy administration tools often keep talking to each other long after the original cutover plan is over. NHIMG notes that 80% of identity breaches involved compromised non-human identities such as service accounts and API keys, which makes retirement hygiene a direct risk metric, not an administrative one. The broader visibility and rotation context is covered in the Ultimate Guide to NHIs, while the control baseline is consistent with the NIST Cybersecurity Framework 2.0.
Teams should also measure how quickly temporary access is revoked after testing, cutover, and remediation work. If revocation lags behind deployment, then the transition is effectively extending privileged access instead of reducing it. These controls tend to break down when the programme spans multiple vendors and shared responsibility boundaries because no single team owns the full access teardown.
Common Variations and Edge Cases
Tighter measurement often increases reporting overhead, requiring organisations to balance visibility against the friction of collecting data from many platforms and partners. That tradeoff is real, especially in insurance programmes that involve legacy mainframe links, outsourced claims processing, and broker integrations. Current guidance suggests that imperfect measurement is still better than none, as long as it is consistent enough to show trends across milestones.
There are a few common edge cases. First, temporary access may be legitimate for data reconciliation or parallel run periods, but it should still have a defined owner, expiry, and revocation check. Second, some integrations cannot be retired immediately because they support downstream regulatory reporting or customer communications; in those cases, security teams should label them as residual dependencies and track them separately from active delivery work. Third, third-party OAuth or API connections may not appear in standard IAM reports, so teams should correlate platform telemetry with identity records. NHIMG research notes that 92% of organisations expose NHIs to third parties, which is why external connectivity deserves explicit measurement.
Best practice is evolving, but the direction is clear: measure not only how many identities were created, but also how many were fully governed, time-bound, and removed on schedule. When exception counts keep rising after each cutover, the transition has shifted from modernization to permanent access sprawl.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 and CSA MAESTRO address the attack and risk surface, while NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Measures rotation and retirement of non-human credentials during migration. |
| NIST CSF 2.0 | PR.AC-4 | Access management metrics show whether temporary privileges are removed on time. |
| CSA MAESTRO | A1 | Migration programmes need identity lifecycle oversight across autonomous integrations. |
Monitor standing vs temporary access and close gaps before cutover milestones complete.
