Strong authentication is important, but it is not the entire identity story. People change roles, applications accumulate permissions, guests finish projects, and workloads outlive their original purpose. The question is not only whether an identity can sign in. It is whether its access still makes sense.

Make ownership visible.

Inventory the identities and applications relevant to your critical services. Identify who owns them and why they exist. An ownerless application permission is difficult to review because nobody is accountable for explaining its business purpose or retiring it safely.

Separate permission from convenience.

Review standing privileged access and the assumptions behind broad group membership. Where supported and appropriate, use time-bounded elevation, approval, and review. Preserve a tested emergency-access process rather than allowing operational pressure to become a permanent exception.

Roll out changes deliberately.

Conditional Access and authentication changes can affect business-critical work. Start with an understood scope, evaluate impact, use staged deployment, and maintain a recovery plan. Success means a policy is effective and operable, not merely enabled.

Modernize the connection, not just the sign-in.

Entra Suite extends the conversation beyond ID Governance. Entra Private Access supports Zero Trust Network Access for private applications, and Entra Internet Access provides secure web gateway controls for internet and software as a service traffic. These security service edge capabilities contribute to a broader secure access service edge design; they do not replace every networking component.

Inventory legacy virtual private network use before proposing removal. Pilot per-application access, verify client and protocol support, and test recovery before retiring an existing route. Keep required site-to-site or unsupported scenarios in scope for a separate solution. Explore secure network access.

Connect joiners, movers, and leavers.

Access should change when business responsibilities change. Define how provisioning, role changes, guest sponsorship, and deprovisioning are triggered. Include application and workload identities in the operating model instead of treating them as permanent infrastructure.

Measure whether the process continues to work.

Use a small set of agreed measures: strong-authentication coverage, unnecessary standing privilege, ownerless identities, and overdue reviews. Give exceptions an owner and a review date. The value of identity governance comes from repeated decisions, not a one-time cleanup.

Zero Trust is an approach to risk and access decisions, not a product switch or a guarantee that compromise cannot occur.

Further reading

Microsoft's Zero Trust principles