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Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group

Who to hire for M365 tenant hardening — match tier to profile: FastTrack (free with E3/E5) covers 60-70% for straightforward workloads. Solutions Partner (Modern Work + Security minimum) for regulated industries. Boutique specialist (like EPC Group with all six Solutions Partner designations) for enterprise + Copilot governance depth + BYOAI. Big Four for multi-vendor board programs. GCC High + CMMC needs partners with defense industrial base experience. Minimum tenant-hardening scope: discovery + foundation + advanced + Copilot-readiness + handoff, 14-25 weeks total. EPC Group 30-Day Accelerator (fixed fee); Full enterprise hardening fixed fee quoted after discovery.

Key Facts

  • Match partner tier to compliance profile — FastTrack / Solutions Partner / boutique / Big Four
  • Minimum credentials: Modern Work + Security Solutions Partner designations
  • EPC Group holds all six Solutions Partner designations
  • Enterprise hardening scope: 14-25 weeks, 12-gap coverage, senior consultant leadership
  • 30-Day Copilot Readiness Accelerator: fixed-fee compressed top-5 gap remediation
  • Full Enterprise Hardening: fixed fee quoted after discovery over 14-25 weeks

M365 Tenant Hardening Partner FAQ

Who should I hire for Microsoft 365 tenant hardening?

Match the partner to your project profile. (1) Small/mid-market with straightforward M365 workloads + internal IT capable — Microsoft FastTrack (free, included with E3/E5) covers 60-70% of hardening needs; internal team handles the rest. (2) Mid-market to enterprise in regulated industries (HIPAA, SOC 2, PCI) — hire a Microsoft Solutions Partner with Security + Modern Work designations. (3) Enterprise + complex environments + Copilot readiness + BYOAI concerns — hire a boutique Microsoft specialist like EPC Group with all six Solutions Partner designations + deep Purview + Entra + Copilot governance experience. (4) DoD contractors + ITAR + CMMC — hire a partner with GCC High deployment history + CMMC 2.0 assessor relationships.

What is Microsoft FastTrack and when is it enough?

Microsoft FastTrack is a free onboarding service Microsoft provides to customers with 150+ M365 licenses. It covers: (1) Tenant setup + baseline configuration. (2) Standard security best-practices enablement (Conditional Access baselines, MFA rollout, basic DLP). (3) Migration support for common workloads. (4) User adoption guidance. FastTrack is sufficient when: workloads are standard (Exchange + SharePoint + Teams + basic Copilot), compliance requirements are baseline (no HIPAA / FedRAMP / CMMC), internal IT is Purview-capable, and there is no active regulatory audit. FastTrack is NOT sufficient for: regulated industries, complex environments, Copilot governance depth, custom app inventory, BYOAI governance.

What is a Microsoft Solutions Partner?

Microsoft Solutions Partner is the current-tier Microsoft partner designation (replaced Gold Partner status in 2022). There are six Solutions Partner designations: (1) Data + AI (Azure), (2) Infrastructure (Azure), (3) Digital + App Innovation (Azure), (4) Business Applications, (5) Modern Work, (6) Security. Each requires: performance measures (revenue + growth), skilling (certifications), and customer success measures (deployment + usage). EPC Group holds all six Solutions Partner designations — one of the smaller number of partners with full portfolio depth. When hiring for M365 tenant hardening, minimum: Modern Work + Security designations.

Big Four vs Solutions Partner vs boutique specialist?

Match to project intent: (1) Big Four (Deloitte / PwC / EY / KPMG) — best for board-facing programs with multi-vendor (Microsoft + AWS + Salesforce) scope + brand credibility for audit committee. Cost: $400-$650/hr blended. Depth of Microsoft-only expertise: lighter. (2) Global system integrators (Accenture / Avanade / Slalom) — best for multi-year enterprise transformation programs with multi-region deployment. Cost: $300-$500/hr blended. Depth: broad but less specialist. (3) Boutique Microsoft specialists (EPC Group and similar) — best for depth-first engagements requiring senior consultants on the actual work + long-term partner tenure. Cost: below the large integrators for equivalent scope. Depth: highest for Microsoft-only work.

What credentials should I verify?

Six credentials to verify before hiring: (1) Microsoft Solutions Partner designations (all six ideal; minimum Modern Work + Security for M365 hardening). (2) Individual senior consultant certifications (MCE, Certified Cybersecurity Architect, Purview + Compliance certifications). (3) Case studies matching your industry + size (ask for 3-5 specifically). (4) Reference calls with prior clients (2-3 minimum, direct conversations). (5) Bench continuity — will the pitch team do the actual work, or will juniors execute? (6) Author + speaker footprint — do their senior staff publish, present at Microsoft Build/Ignite, contribute to Microsoft engineering feedback? Depth signals matter.

What should a tenant-hardening engagement include?

Minimum scope for enterprise-grade tenant hardening: (1) Discovery + assessment (2-3 weeks) — 12-gap audit (permission drift, DLP coverage, sensitivity labels, Insider Risk, Entra Conditional Access, Defender integration, Compliance Manager). (2) Foundation deployment (4-8 weeks) — sensitivity label taxonomy, DLP baseline, permission cleanup, guest access restrictions, legacy auth removal. (3) Advanced controls (4-8 weeks) — Insider Risk, Communication Compliance, Purview eDiscovery Premium if needed. (4) Copilot readiness gap closure (2-4 weeks) — BYOAI policy, approved-tool list, endpoint DLP. (5) Handoff + ongoing governance (2 weeks) — runbook, monitoring, quarterly reviews. Full program: 14-25 weeks, fixed fee quoted after discovery depending on scope.

How does EPC Group approach tenant hardening?

EPC Group tenant hardening portfolio: (1) 30-Day Copilot Readiness Accelerator (fixed fee, 30 days) — compressed top-5 gap remediation for organizations needing fast pre-Copilot readiness. (2) Copilot Readiness Assessment (fixed fee, 3 weeks) — full 12-gap audit + remediation roadmap + fixed-fee proposal for Foundation. (3) Full Enterprise Hardening (14-25 weeks, fixed fee quoted after discovery) — Foundation + Advanced + Copilot Readiness + ongoing governance. (4) CMMC 2.0 Level 3 Readiness (16-24 weeks, quoted after discovery) — control mapping + evidence generation + audit prep. All engagements include: senior consultant leadership throughout, weekly progress reviews, deliverable-based milestones, and post-engagement quarterly check-ins.

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