Zero Trust Security Expertise

Trust Nothing.
Verify Everything.

Transform your organization's security posture with an optimized Zero Trust strategy and design. Protect what matters most in an era where perimeter security is obsolete.

ZTX
Creator of the Zero Trust eXtended Framework
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Publications Citing His Work
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DrZeroTrust Podcast Episodes
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Published Books

U.S. Navy (Ret.) · NSA · FBI Cyber · Former VP & Principal Analyst, Forrester Research · Ph.D. Computer Science

About

The Zero Trust Mindset

In today's threat landscape, the traditional security perimeter no longer exists. Organizations need a new approach—one that assumes breach and verifies explicitly at every access request.

With over 20 years of experience in cybersecurity architecture, I help organizations implement comprehensive Zero Trust strategies and frameworks that protect critical assets, enable secure remote work, and meet regulatory compliance requirements.

Retired U.S. Navy Chief Cryptologic Technician. Former VP & Principal Analyst at Forrester Research, where he created the ZTX framework and built the Zero Trust certification program.

Track Record
  • Creator of the Zero Trust eXtended (ZTX) Ecosystem Framework adopted industry-wide
  • Built Forrester's Zero Trust certification program
  • Advisor to senior defense and intelligence leaders on Zero Trust strategy
  • Author of Cyber Warfare: Truth, Tactics, and Strategies and 10 other titles
  • Host of the weekly DrZeroTrust podcast since 2021

Optimized Infrastructure

ZT-enabled security architecture

UZTNA

Universal Zero Trust Network Access

ZTX Creator

Creator of the Zero Trust eXtended (ZTX) Ecosystem Framework

Services

Optimized Technology Selection

End-to-end Zero Trust guidance and strategic implementation consulting to protect your organization from modern cyber threats.

Zero Trust Architecture

Design and implement comprehensive Zero Trust frameworks tailored to your organization's unique requirements and risk profile.

Identity & Access Management

Establish robust IAM strategies with MFA, SSO, and adaptive authentication to verify every user and device.

Security Assessment

Comprehensive evaluation of your current security posture with an actionable roadmap for Zero Trust transformation.

Micro-Segmentation

Implement granular network segmentation to contain breaches and limit lateral movement of threats.

Data Protection

Encrypt data at rest and in transit with classification and DLP strategies aligned to Zero Trust principles.

Incident Response

Develop and test incident response plans that leverage Zero Trust architecture for rapid threat containment.

Architecture Library

Zero Trust Architecture Library

Every reference architecture that actually matters — with a straight-talk take on each one, a framework comparison, a downloadable one-pager, and a self-assessment.

Created by Dr Zero Trust
Forrester

ZTX: Zero Trust eXtended Ecosystem

The framework that extended Zero Trust beyond the network into data, people, workloads, and devices.

Dr Z's Take

"I built ZTX to kill the idea that Zero Trust was a networking problem. It's an ecosystem problem. Start here to understand the whole board."

View Document
NIST

NIST SP 800-207: Zero Trust Architecture

The foundational federal definition of Zero Trust architecture.

Dr Z's Take

"The scripture. If you haven't read 800-207, you don't get to argue about what Zero Trust means."

View Document
CISA

CISA Zero Trust Maturity Model v2.0

Five pillars, four maturity stages; the benchmark for federal and commercial ZT programs.

Dr Z's Take

"The best tool going for figuring out where you actually are versus where your vendor deck says you are."

View Document
DoD

DoD Zero Trust Strategy & Capability Roadmap

7 pillars, 91 target-level activities, and a real deadline (FY2027).

Dr Z's Take

"The most operationally serious ZT plan on the planet. If it can work at DoD scale, your enterprise excuses are gone."

View Document
DoD

DoD Zero Trust Reference Architecture v2.0

The technical reference architecture behind the DoD strategy.

Dr Z's Take

"Dense, but this is what right looks like when the mission actually depends on it."

View Document
NIST

NIST SP 1800-35: Implementing a Zero Trust Architecture

19 example builds with commercial technology, from the NCCoE lab.

Dr Z's Take

"800-207 tells you what. This one shows you how, with real gear. Steal shamelessly."

View Document
NSA

NSA: Embracing a Zero Trust Security Model

Pillar-by-pillar guidance on advancing ZT maturity.

Dr Z's Take

"Short, blunt, and written by people who break networks for a living. Read it in one sitting."

View Document
Microsoft

Microsoft Zero Trust Architecture

The dominant commercial reference model, mapped to the Microsoft stack.

Dr Z's Take

"Useful if you live in the Microsoft ecosystem — just remember the strategy is yours, not Redmond's."

View Document
Google

Google BeyondCorp

The first large-scale enterprise Zero Trust implementation; proof this works in production.

Dr Z's Take

"The existence proof. When someone says ZT is theoretical, hand them this and walk away."

View Document

Which Framework, When?

Quick side-by-side on the four frameworks you'll actually get asked about in a board meeting.

DimensionZTX (Forrester)NIST 800-207CISA ZTMMDoD ZT
Best ForStrategy & board-level framingBaseline definition & complianceProgram maturity benchmarkingLarge, mission-critical enterprises
ScopeData, people, workloads, devices, networksLogical components & tenets5 pillars + 3 cross-cutting capabilities7 pillars with 152 activities
Maturity Model IncludedNo (framework only)No (architecture only)Yes (Traditional → Optimal)Yes (Target & Advanced)
Federal AlignmentCommercial origin, widely citedFoundational US federal specUS federal mandate baselineDoD-mandated by FY2027
Practicality for ImplementationConceptual — start hereReference, not a roadmapHighly practical, tool-agnosticMost prescriptive; heaviest lift
Free Download

Get the Dr Zero Trust Reference Architecture

A one-page, no-vendor-BS reference architecture distilled from hundreds of ZT engagements. Free — tell me where to send it.

Self-Assessment

Where Do You Stand?

Ten questions across the five CISA pillars. All scoring is local to your browser. Takes about three minutes.

Identity · Question 1 / 10
How are user identities authenticated for critical systems?
Identity · Question 2 / 10
How are privileged/admin accounts managed?
Devices · Question 3 / 10
What's your visibility into every device touching your data?
Devices · Question 4 / 10
How is device health enforced at access time?
Networks · Question 5 / 10
How is your internal network segmented?
Networks · Question 6 / 10
How do remote users reach internal apps?
Applications · Question 7 / 10
How is access to internal apps authorized?
Applications · Question 8 / 10
How is application & workload security tested?
Data · Question 9 / 10
How is sensitive data classified and tracked?
Data · Question 10 / 10
How is data access controlled and monitored?
Answer all 10 questions to continue.
Solutions Showcase

Zero Trust Solutions Showcase

Interactive, on-demand demos from vendors delivering real Zero Trust capabilities. Explore each platform on your own time — no sales call required.

Demos hosted on demo-force.com. Featured vendors are showcased for educational purposes and do not constitute an endorsement or exclusive partnership.

Partners

Dr Zero Trust Partners

Trusted collaborators advancing Zero Trust through independent research, analysis, and strategic guidance.

Publications

Zero Trust Research

"Security is not a product, but a combination of strategy, process, and execution. Zero Trust is not just an architecture—it's a mindset. There is no Zero Trust product, period."

— Dr Zero Trust
Speaking & Media

Keynotes, Podcasts & Commentary

Dr. Cunningham keynotes conferences worldwide and hosts the DrZeroTrust podcast, delivering no-nonsense analysis on cybersecurity strategy, Zero Trust, and the business of security.

Podcast

The DrZeroTrust Podcast

No-nonsense analysis on cybersecurity strategy, Zero Trust, and the business of security.

Listen on Spotify
YouTube

Talks, interviews & breakdowns

Keynotes, panels, and expert commentary on the latest in Zero Trust and cyber strategy.

Watch on YouTube
Book Dr. Zero Trust

Keynotes & Media

Keynotes, panels, media commentary, and podcast guest appearances.

Check Availability
Featured Documentary

Dr. Cunningham on Film

Podcast

The DrZeroTrust Podcast

Contact

Let's Talk Zero Trust

Let's discuss how a Zero Trust strategy focused on your needs can transform your organization's security posture and protect your critical assets.