Illumio and John Kindervag publish Zero Trust book for the AI era
Illumio, the breach containment vendor, has published "Cyber Resilience at Machine Speed: The Zero Trust Model for the AI Era", a multi-author book edited by John Kindervag, the Forrester analyst widely credited with originating the Zero Trust model. The book is available as a free download from the Illumio website and brings together eleven named contributors from government, academia and the private sector.
The release is framed around a central argument: that the foundational tenets of Zero Trust, specifically verification, least privilege, microsegmentation and breach containment, remain relevant as AI accelerates both attacker capability and the pace of trust decisions within enterprise environments. The book addresses non-human identities and agentic AI systems as emerging attack surfaces that existing Zero Trust implementations may not fully cover.
Contributors and content
The contributor list spans federal cybersecurity leadership and practitioner research. Notable authors include Don Yeske, former Department of the Navy CTO and a Department of Homeland Security cyber official who drove Zero Trust adoption across US federal agencies, and Jonathan Flack, an architect of a Department of Defense Zero Trust-certified environment. Dr Chase Cunningham, who developed the Zero Trust eXtended framework during his time at Forrester, also contributed, alongside Jason Garbis and Josh Woodruff, both co-chairs of the Cloud Security Alliance's Zero Trust Working Group.
Kindervag described the book as a deliberate collection of perspectives rather than a single-author treatise. "I went to the people I trust and asked each of them to write their own great chapter," he said. "The result is a collection of ideas, experiences, and practical lessons from some of the smartest minds in cybersecurity, showing how Zero Trust can help organisations stay resilient as AI reshapes the threat landscape."
The book follows a five-step Zero Trust methodology and includes sections on translating business requirements into enforceable security policy, reducing lateral movement through segmentation, and building breach-containment capability alongside conventional prevention controls.
Market context
The publication arrives at a moment of significant commercial and regulatory momentum for Zero Trust architectures. In the US, the Biden-era Executive Order 14028 mandated Zero Trust adoption across federal agencies by 2024, a deadline that drove substantial enterprise spend and a wave of vendor certifications. In the UK, the National Cyber Security Centre has similarly endorsed Zero Trust principles in its guidance for public-sector organisations, while the EU's NIS2 Directive and DORA both emphasise resilience and containment over perimeter-only defence.
Illumio occupies a specific niche within the broader Zero Trust market, positioning its microsegmentation platform as a breach-containment layer rather than a network-access or identity product. The company noted in its boilerplate that it has been recognised as a leader in the Forrester Wave for Microsegmentation. That category sits alongside identity-centric Zero Trust approaches from vendors such as Zscaler, Palo Alto Networks and CrowdStrike, each of which has been expanding its own Zero Trust narrative as enterprise buyers consolidate security platforms.
Editorial note
The book is a free marketing asset produced under Illumio's brand. Its practical value to security architects will depend on the depth of the individual chapters, which the press release does not excerpt in detail. The agentic AI and non-human identity threads are among the most active areas of debate in enterprise security right now, and a credible treatment from Kindervag and his co-authors could carry genuine practitioner weight. Readers should note the commercial context before treating it as independent research.