QCecuring - Enterprise Security Solutions

Microsoft AD CS Migration

Migrate from legacy or misconfigured AD CS infrastructure to a modern, properly architected PKI. Parallel operation during transition ensures zero disruption. Phased certificate migration with rollback capability at every step.

Request a Quote Typical engagement: 4-8 weeks

What You Get

Current state assessment (full AD CS audit)
Target architecture design addressing all identified gaps
Migration plan (phased approach with dependencies and rollback)
New PKI deployment (Root CA + Issuing CA built alongside existing)
Certificate migration (templates, auto-enrollment, re-issuance)
Parallel operation period (both old and new running)
Decommission plan for retiring old CAs
Updated documentation (runbooks, CP/CPS, procedures)

How It Works

1

Assessment

Week 1-2

Audit existing PKI, document current state, identify risks

2

Design

Week 2-3

Target architecture, migration strategy, risk mitigation

3

Build New PKI

Week 3-5

Deploy new hierarchy alongside existing

4

Migrate

Week 5-7

Phase certificate templates, auto-enrollment, client certs

5

Validate

Week 7-8

Parallel operation, verify all services using new certs

6

Decommission

Week 8+

Retire old CAs once fully validated

Typical Scope & Duration

Scope Duration
Single CA migration, simple environment 4-6 weeks
Multi-CA, complex environment 6-8 weeks
Cross-forest / large enterprise 8-12 weeks

Who This Is For

  • Organizations running outdated AD CS (Server 2008/2012)
  • Companies with 1-Tier PKI needing proper 2-Tier separation
  • Teams that inherited broken/undocumented PKI
  • Organizations with compliance findings about their PKI
  • Companies consolidating after M&A (multiple PKIs to unify)

What Happens Next

CLM platform deployment for the new PKI
Ongoing monitoring and health assessments
Certificate automation and lifecycle management

Ready to Get Started?

Schedule a free scoping call. We'll understand your environment and provide a clear proposal with scope, timeline, and pricing.

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