Zero Trust Strategy & Architecture
Independent advisory aligned to the DoW Zero Trust Strategy and CISA Zero Trust Maturity Model - with prescriptive Microsoft configuration guidance from the author of the Microsoft guidance.
Mission-First Microsoft Security Advisory
Turn Existing Microsoft Security Investments into Measurable Zero Trust Outcomes at Lower Cost.
Identity. Zero Trust. Security. Government Cloud Strategy.Better Security. Lower Cost. Zero Trust Done Right.Achieve measurable Zero Trust outcomes while improving end user experience.
MissionTrust Advisors helps Federal Civilian, Department of War, and National Security organizations operationalize the Microsoft capabilities they already own. We help agencies realize Zero Trust outcomes, reduce complexity, and meet compliance requirements while lowering costs and improving end user experience.
Federal Civilian | DoW | Intelligence Community
20+ Years Federal Identity & Security Advisory
Native Microsoft Configuration Guidance
Measurable Zero Trust Outcomes & Compliance
Capabilities At A Glance
Zero Trust Architecture
ICAM Modernization
Microsoft 365 Security
Agentic (AI) Identity
Non-Human Identity Security
Measurable Zero Trust Outcomes
FedRAMP and CMMC Alignment
Executive Roadmapping
Advisory Services
Auditable outcomes. Proven guidance. 20+ years of federal trust.
Microsoft 365 & Azure Security Optimization
Unlock the full security capability of your existing M365 and Azure investment. Most agencies are underutilizing what they already own - we fix that, measurably.
Identity & Access Modernization (ICAM)
Entra ID architecture, phishing-resistant MFA, ADFS retirement, identity governance, privileged access, and non-human identity security - designed for Federal Civilian, DoW, and National Security environments.
Secure Automation Integration & Security
Practical guidance that seamlessly incorporates secure automation and outcome-driven patterns into your Zero Trust architecture, including identity, access, governance, and mission grounding.
Sovereign Cloud Strategy & Readiness
Advisory for GCC, GCC High, and other sovereign cloud scenarios, helping teams align identity, security controls, and operating patterns to regulated mission requirements.
FedRAMP, CMMC & Federal Compliance
Gap assessments, control mapping, and native Microsoft configuration guidance to meet FedRAMP High, CMMC 2.0, and NIST 800-63 - using what you already have licensed.
Executive Advisory & Briefings
CIO and CISO-level briefings that translate requirements (EO 14028, OMB M-22-09, CISA ZTMM, DoW Zero Trust Strategy, CMMC) into real-world improved security outcomes.
Independent Architecture Review
Objective, senior-level assessment of your Microsoft security architecture, Conditional Access posture, and Zero Trust maturity - measured against federal frameworks and real-world threat scenarios.
Who We Serve
Intelligence Community (IC) - National Security missions
Department of War (DoW) - Components, PEOs, Program Offices
Federal Civilian Agencies
Defense Industrial Base (DIB) - Prime contractors and supply chain
Our Process
A 3-step approach
Better security outcomes begin by activating what you already own.
Step 01
Assess What You Already Own
We map your existing Microsoft licensing, control posture, and roadmap obligations to identify fast, high-value improvements.
Step 02
Configure for Auditable Outcomes
We provide implementation-level guidance for Zero Trust controls so teams can deliver measurable, defensible security outcomes.
Step 03
Execute a Federal-Ready Roadmap
Leadership receives a sequenced plan that improves security, lowers cost, and accelerates compliance milestones without adding unnecessary tooling.
CEO & Founder of MissionTrust Advisors
The Author of the Playbook. Now Working For You.
20+ years advising Federal Civilian, DoW, and National Security agencies - now as your independent advisor.
Keith Brewer is the founder and principal advisor of MissionTrust Advisors - a boutique advisory firm built on 20+ years of direct experience architecting identity security and Zero Trust solutions across Federal Civilian agencies, the Department of War, and National Security missions.
Before founding MissionTrust, Keith served as a Principal Identity & Security Architect at Microsoft and led strategic architecture work with U.S. Government customers in Identity and Network Access (IDNA) Customer Experience Engineering (CxE). He authored and co-authored Microsoft's official guidance on DoW Zero Trust Strategy, CISA Zero Trust Maturity Model, CMMC Guidance, and help customers meet identity requirements in FedRAMP High initiatives. As part of Microsoft efforts to help agencies meet EO 14028, Keith led the development and publishing of guidance on how agencies can better understand phishing-resistant authentication methods and migrated to Microsoft Entra Certificate-Based Authentication (CBA).
MissionTrust was founded on a simple but powerful premise: most agencies already own everything they need to achieve strong, auditable Zero Trust outcomes. Stitching together multiple vendor products is complex and in many cases not possible. The result is a fragmented admin and user experience that often fails to achieve the desired security outcome. Simply put, starting with a goal of implementing the Microsoft security products most agencies already own that natively integrate with Microsoft 365 and Azure workloads leads to better Zero Trust outcomes. This is where MissionTrust Advisors excels: helping agencies improve the overall security posture, administrative capability, and increased SOC visibility, with reduced complexity and cost, often while improving user experience.
Cleared Advisor to Department of War and National Security Agencies20+ Years Federal & National Security AdvisoryArchitect & Director: Microsoft Official Guidance on Zero Trust, Identity & ComplianceFederal Civilian | DoW | Intelligence CommunityMicrosoft Principal Architect (2004-2026)Azure | Microsoft 365 | Microsoft Entra IDServing the Federal Enterprise
Keith Brewer | CEO & Founder, MissionTrust Advisors
Are You Ready to Realize a Better Zero Trust Posture?
If you are ready to improve your Zero Trust posture while reducing cost and complexity, MissionTrust will map a focused advisory path aligned to your mission, mandate deadlines, and budget reality.