Authentication, authorisation and identity proofing: what teams miss

TL;DR: The article explains how identity proofing, authentication and authorisation fit together, and why access should only follow successful verification, with stronger factors such as MFA reducing fraud risk, according to Imprivata. The governance lesson is that identity assurance fails when each step is treated as interchangeable instead of a distinct control point.

NHIMG editorial — based on content published by Imprivata: authentication, authorisation and identity proofing explained

Questions worth separating out

Q: How should security teams separate authentication from authorisation in IAM policy?

A: Security teams should treat authentication as proof that an identity is credible and authorisation as the policy decision that follows.

Q: Why do strong login controls still leave access risk unresolved?

A: Strong login controls only reduce the chance of unauthorised entry.

Q: What breaks when service accounts are governed like human logins?

A: What breaks is the lifecycle model.

Practitioner guidance

• Separate proofing, authentication and authorisation in policy Document each stage as a distinct control with its own owner, evidence source and review cadence.
• Tighten privilege after identity is verified Review roles, group memberships and PAM assignments immediately after authentication design changes.
• Apply the same lifecycle discipline to machine identities Track service accounts, API tokens and certificates through enrolment, usage, rotation and revocation.

What's in the full article

Imprivata's full article covers the operational detail this post intentionally leaves for the source:

• Practical examples of password, PIN, smartcard and biometric factors in healthcare access flows
• The full breakdown of where authentisierung, authentifizierung and authorisation differ in day-to-day access decisions
• Detailed discussion of mobile access management and multi-factor methods used in clinical environments

👉 Read Imprivata's explanation of authentication, authorisation and identity proofing →

Authentication, authorisation and identity proofing: what teams miss?

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