Identity visibility and posture tools promise a single view of every identity and a prioritised list of what to fix. Vendors reach this space from IGA, identity analytics, ITDR, cloud security, SaaS security and NHI security, so products labelled IVIP or ISPM can look similar in a demo and behave very differently on your data. This vendor-neutral buyer's guide helps you decide whether you need a dedicated platform, what to evaluate and how to test coverage and accuracy.
Key takeaways
- The core test is data quality: coverage of your sources, and accuracy of correlation between accounts, people and workloads.
- Evaluate posture findings for relevance and prioritisation, not volume.
- Check coverage of non-human identities and AI agents, often the biggest blind spot.
- Findings only matter if they lead to action. Test integration with IGA, PAM, IdP and ticketing.
Define requirements
- List your identity sources: IdPs, directories, HR, IGA, PAM, clouds, key SaaS applications, databases, NHI and secrets sources.
- List the questions you need answered: complete inventory, effective access, orphaned accounts, MFA gaps, attack paths, blast radius.
- Decide who will use it: IAM, security operations, GRC, audit.
- Understand what your existing IdP, IGA and ITDR tools already provide. See What Is IVIP? and the ISPM Guide.
Evaluation criteria
| Area | What to test |
|---|---|
| Coverage | Native connectors for your sources; ability to ingest custom and on-premises applications; NHI and AI agent sources |
| Correlation | Accuracy of linking accounts to people and workloads; handling of naming differences, contractors and shared accounts |
| Effective access | Resolution of nested groups, roles and cloud policies into what an identity can actually do |
| Posture findings | Relevance, explanation, prioritisation and false positive rate; mapping to frameworks |
| Attack paths | Identification of privilege escalation routes across systems |
| Analytics | Peer comparison, outliers, natural-language queries, with explainable results |
| Action | Integration with IGA, PAM, IdP, SOAR and ticketing; automated remediation options |
| Freshness | How often data refreshes; near-real-time change detection |
| Platform security | Permissions required in your systems; data storage and residency |
Questions to ask vendors
- Show us everything a named user, a service account and an AI agent can access across our environment.
- How do you find accounts in applications that are not connected to our IdP or IGA?
- What is your correlation accuracy on our data, and how do we correct mistakes?
- Which of your findings are unique compared with what our IdP and IGA already report?
- How do findings reach owners and get verified as fixed?
- Do you need write access to our systems? For what?
Red flags
- Impressive graphs built from a handful of sources.
- Thousands of findings with no prioritisation.
- No way to correct correlation errors.
- No NHI coverage beyond listing service accounts.
Proof of concept
- Connect your main IdP and directory, HR, one cloud, two important SaaS apps and one disconnected application.
- Validate correlation on a sample of identities, including contractors and service accounts.
- Compare findings with your known issues; measure false positives and new true findings.
- Run a blast radius query for a privileged identity and verify it manually.
- Push a finding through to remediation and confirm closure.
How NHI Mgmt Group can help
We provide independent requirements and evaluation support. Browse vendors in our products directory or contact us.
Related NHI Mgmt Group resources: What Is IVIP? · ITDR Buyer's Guide · IGA Buyer's Guide · NHI Security Platform Buyer's Guide
