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REF-06Reference scenarioEnterprise & Corporate

Phased zero-trust access for a hybrid workforce

A reference security roadmap replacing broad remote access with identity-led, auditable controls.

Published

This is a planning example written by EngineSpire to show how we would approach the problem. It is not a completed client project, and its outcomes are design targets rather than measured results.

The challenge

Remote staff and service providers use broad VPN access to reach internal applications. Ownership of accounts and exceptions is inconsistent, and security teams lack a consolidated view of privileged activity.

The solution pattern

The roadmap strengthens identity and MFA, inventories access paths, separates workforce and vendor policies, segments priority applications and centralizes authentication logs. Changes are introduced in measured phases with exception owners and rollback paths.

How the work would be phased

  1. PHASE 01

    Inventory access

    List identities, VPN groups, service providers, privileged accounts and every path into internal applications, and name an owner for each.

  2. PHASE 02

    Strengthen identity

    Enforce MFA for everyone, use phishing-resistant methods for administrators, add conditional access and formalize joiner, mover and leaver steps.

  3. PHASE 03

    Replace broad access

    Move applications from network-wide VPN access to identity-aware access one at a time, starting with the most sensitive systems.

  4. PHASE 04

    Separate vendor access

    Give service providers time-limited, approved and recorded access to only the systems they support.

  5. PHASE 05

    Monitor and review

    Centralize authentication and privileged-activity logs, and review policy exceptions with their owners every month.

Trade-offs and considerations

  • Older applications without modern authentication may need an access proxy, or stay on VPN for a while with compensating controls.
  • Too many MFA prompts lead to user fatigue and careless approvals. Tune conditional access so prompts appear when risk changes.
  • Zero trust is an ongoing program, not a product. Budget time for policy maintenance and exception reviews.
  • Measure progress by how much broad access has been removed, not by how many tools have been bought.