NEVER TRUST. ALWAYS VERIFY.
ZTNSS delivers DoD-aligned Zero Trust architecture, adversarial Red Team validation, and independent security advisory — built on 32 years of operational IT and military cybersecurity experience.
What is Zero Trust?
The End of the Perimeter
Traditional security trusted everything inside the network. Nation-state actors, ransomware groups, and insider threats have proven that model catastrophically wrong. Zero Trust eliminates implicit trust entirely — every user, device, and transaction is verified, every time.
The DoD Mandate
The Department of Defense has mandated Zero Trust adoption across all components by FY2027. The framework covers 45 capabilities and 152 activities across 7 pillars. Non-compliance is not an option for DoD components and defense contractors.
John G. Crosby has no products to sell and no vendor relationships to protect. His recommendations are driven exclusively by your threat model, your operational requirements, and the same DoD Zero Trust standards he helped implement at USSOCOM. Zero affiliations. Zero bias. 32 years of credibility.
The 7 Pillars of DoD Zero Trust
Continuous identity verification, phishing-resistant MFA, PAM, and behavioral analytics for every human and machine identity.
Explore Pillar →Every endpoint assessed for health and compliance before and during every access session. No device is inherently trusted.
Explore Pillar →Micro-segmented, encrypted, policy-enforced networks. Lateral movement is architecturally impossible, not just discouraged.
Explore Pillar →Applications enforce their own access controls. API security, DevSecOps, and runtime workload protection.
Explore Pillar →Data carries its own protection — classification, encryption, and usage rights travel with the data wherever it goes.
Explore Pillar →Every action across the enterprise is logged, correlated, and analyzed in real time. No more 207-day dwell times.
Explore Pillar →Machine-speed policy enforcement and threat response. Zero Trust at enterprise scale requires automation — humans can't keep pace.
Explore Pillar →READY TO VERIFY EVERYTHING?
30 minutes with John delivers more actionable Zero Trust clarity than a 6-month vendor evaluation.