They should measure ownership coverage, credential age, unused integration count, and the gap between installed apps and actively used apps. Those signals show whether governance is keeping pace with expansion or whether the environment is accumulating hidden access paths that will be hard to unwind later.
Why This Matters for Security Teams
A growing app marketplace is not just a procurement problem. It is an identity problem, because every installed integration can introduce new service accounts, OAuth grants, API keys, delegated permissions, and long-lived trust relationships. When teams track only app counts, they miss the real risk: ownership gaps, stale credentials, and integrations that remain enabled long after business use has faded. That is how hidden access paths accumulate.
The control question is whether identity governance can keep pace with app sprawl. Current guidance in the NIST Cybersecurity Framework 2.0 aligns with this by emphasizing asset visibility, access management, and continuous monitoring. NHIMG research shows why this matters in practice: only 5.7% of organisations report full visibility into their service accounts, and 71% of NHIs are not rotated within recommended time frames, which makes marketplace growth especially risky when ownership is unclear.
In practice, many security teams discover the exposure only after an integration is abused or forgotten during a cleanup effort, rather than through deliberate governance of the marketplace itself.
How It Works in Practice
The right measurements should show whether every app is owned, whether its access is still needed, and whether its credentials are still safe to trust. Start with ownership coverage, because an app without a named business and technical owner is difficult to review, revoke, or offboard. Then measure credential age and rotation status, because long-lived secrets tend to outlive the business process that justified them.
For marketplace governance, the most useful signals are operational rather than cosmetic. Track installed apps versus actively used apps, and separate active usage from mere presence in the tenant. A large gap often means shadow integrations, failed pilots, or legacy permissions that were never removed. Add unused integration count, because dormant connectors still carry authentication paths and can become easy targets if their tokens remain valid.
This is where broader NHI governance becomes relevant. NHIMG research on the Ultimate Guide to NHIs shows how common overexposure has become across non-human identities, while the 2024 Non-Human Identity Security Report highlights the maturity gap in non-human access management. That context matters because marketplace apps often inherit the same weaknesses as other NHIs: static secrets, weak offboarding, and poor inventory hygiene.
- Measure ownership coverage as a percentage of apps with both business and technical owners assigned.
- Measure credential age with a hard view of how many integrations exceed your rotation threshold.
- Measure active-to-installed ratio to surface unused apps that still have access.
- Measure revocation latency so deprovisioning is visible, not assumed.
These controls tend to break down in federated SaaS estates because app catalogs, IdP logs, and business ownership records are usually split across different teams and tools.
Common Variations and Edge Cases
Tighter app governance often increases operational overhead, requiring organisations to balance visibility against the effort of maintaining accurate ownership and usage data. That tradeoff is real, especially in fast-moving environments where teams spin up integrations for short-term workflows and forget to formally retire them.
Best practice is evolving for marketplace-heavy environments. There is no universal standard for calculating “actively used” apps, so some teams rely on last-authentication timestamps while others combine API traffic, consent activity, and business approval records. The important point is consistency: a metric is only useful if it is repeatable and tied to a revocation decision.
Edge cases matter. Marketplace apps connected through delegated admin rights may look low risk until a single privileged grant expands across many users. Similarly, externally managed integrations may not expose full credential details, which makes ownership and contract controls more important than technical inspection alone. NHI Management Group guidance suggests treating these integrations as part of identity inventory, not as a separate software catalog, because hidden access paths are what make cleanup expensive later.
In large multi-cloud or multi-SaaS environments, these measurements become less reliable when ownership data is stale, usage is fragmented across multiple logs, or app registrations are created outside central governance.
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 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Marketplace apps create non-human identities that need full inventory and ownership. |
| NIST CSF 2.0 | PR.AC-4 | Access rights and app approvals must be monitored as entitlements change. |
| NIST AI RMF | Continuous measurement supports governance, monitoring, and accountability decisions. |
Continuously review app entitlements and remove unused marketplace access during scheduled access reviews.
