VectorCertain LLC announced today the completion of manuscript preparation for The MYTHOS Playbook: The CISO’s Technical Guide to Governing Autonomous AI Agents, a 34-chapter, nine-appendix technical reference designed to operationalize the joint Five Eyes guidance on agentic AI security released May 1, 2026. The book closes a 17-sprint development cycle and is set for publication in June 2026, with pre-order interest registration available at vectorcertain.com.
The announcement comes as the Five Eyes nations—the United States, United Kingdom, Canada, Australia, and New Zealand—jointly published “Careful Adoption of Agentic AI Services,” a 30-page document identifying five risk classes: privilege, design and configuration, behavioral, structural, and accountability. The guidance, co-authored by CISA, NSA, ASD ACSC, the Canadian Centre for Cyber Security, NZ NCSC, and UK NCSC, marks the first coordinated multi-government security guidance specifically addressing agentic AI systems, moving autonomous-agent risk from an emerging vendor problem to a critical national infrastructure concern.
The market context underscores the urgency. According to VectorCertain’s research, one in eight enterprise breaches now involves AI agents, a 340% year-over-year surge, with 78% of compromised agents over-permissioned. Gartner projects AI agents will be embedded in 40% of enterprise applications by the end of 2026, up from less than 5% in 2025. The Centre for Long-Term Resilience documented 698 real-world AI deception incidents in a single six-month window—a 4.9x increase, including inter-model deception. Analysis of 18,470 production agent configurations found 98.9% lack deny rules entirely, and 88% of organizations report agent-related security incidents, according to AGAT Software.
The MYTHOS Playbook fills the gap between the Five Eyes policy-level recommendations and CISO-grade implementation. Each risk class in the guidance maps to specific chapters and appendices. Privilege risks are addressed in Part II’s architectural patterns with patent-form least-privilege architecture and the 8-2-8 model reference card. Design and configuration risks are covered through secure-by-design patterns in Part II and Part VI, plus Appendix G’s 12-clause vendor RFP language library. Behavioral risks are tackled in Part III’s seven-vector behavioral threat taxonomy and Part IV’s statistical detection methodology, which includes HOTS Homology achieving 81.4% deception-detection precision. Structural risks are managed via the 8-2-8 compositional safety model and Part V’s real-time orchestration monitoring patterns, with Appendix C delivering a 119-cell framework cross-walk mapping the Five Eyes risk classes to NIST AI RMF, OWASP LLM Top 10, OWASP Agentic Top 10, CRI FS AI RMF, and MITRE ATLAS. Accountability risks are addressed through Appendix F’s hash-chained audit record sample and Chapter 22’s Crumpton 5/5 disclosure methodology.
The book’s statistical foundation is built on the Clopper-Pearson exact binomial confidence interval, validated across 7,000 adversarial scenarios with 100% recall and a 3-sigma lower bound of ≥99.65% at 99.7% confidence. This methodology is published in Part IV and Appendix B, providing CISOs with a worksheet they can apply to their own detection-claim portfolios. VectorCertain’s internal data shows its SecureAgent platform achieves a false-positive rate of 1 in 160,000, or 53,333 times below the EDR industry average of about 1 in 3, as reported by Gartner and Ponemon.
Joseph P. Conroy, founder and CEO of VectorCertain LLC, emphasized the convergence between the Playbook’s independently derived risk taxonomy and the Five Eyes guidance. “The Five Eyes did the hard policy work—establishing that agentic AI risk is a national-security-grade concern across all five member nations, simultaneously. The MYTHOS Playbook is the operational complement: the technical reference a CISO can hand to a security architect, who can then specify enforcement at deployment depth,” Conroy said. “We didn’t write a book about the Five Eyes guidance—we wrote a book about the underlying threat landscape, and the Five Eyes published guidance arrived at the same risk taxonomy independently. That convergence is the single strongest validation of both documents.”
The Cloud Security Alliance’s MAESTRO threat-modeling framework, introduced in February 2025 with a separate seven-layer architecture, also maps to the Five Eyes five risk classes with similar fidelity, further reinforcing that the risk taxonomy is convergent across independent expert derivations. The Playbook’s manuscript was structurally complete by April 2026—before the Five Eyes guidance was published—and required no retrofit, a fact VectorCertain touts as independent operational validation.
For CISOs and procurement teams, the book provides concrete tools beyond principles. Appendix G offers a 12-clause vendor RFP language library with inheritance, designed to drop into existing critical-infrastructure procurement processes. Each clause is statistically validated against documented agentic AI failure modes. Appendix F delivers a complete GTID audit-record sample with hash-chained tamper evidence, aligned to SOX seven-year retention requirements. The Playbook also includes a full cross-walk to the Cyber Risk Institute’s Financial Services AI Risk Management Framework, which covers 230 control objectives. SecureAgent has been validated against all 230 objectives, converting 97% from a detect-and-respond posture to a detect-prevent-and-govern posture.
The book is structured in seven parts plus appendices, spanning approximately 450,000 words. Its author, Joseph P. Conroy, brings 30 years of experience building mission-critical AI systems, including the first commercial U.S. AI application for parts-per-trillion gas detection in 1997 and work that contributed to AI-based monitoring being codified in federal regulations. The patent portfolio underlying the book’s architectural commitments includes 55 patents in a hub-and-spoke structure, with consolidated valuation estimates ranging from $285 million to $1.55 billion.
The MYTHOS Playbook completes its manuscript-prep cycle and proceeds to June 2026 publication. A companion volume, After MYTHOS: The C-Suite and Board Volume, is scheduled for Q2 2027. Early registrants for pre-order at vectorcertain.com receive priority access to author-led briefings and the Tier A External Exposure Report at no cost.
