ZERO DAY: The Invisible War

In an era where software runs the world and intelligent systems drive critical decisions, the most dangerous threats are the ones you never see coming. ZERO DAY: The Invisible War explores how artificial intelligence is transforming the discovery, exploitation and defense of zero-day vulnerabilities, faster than most organizations can adapt.

The book bridges deep technical understanding with practical, real-world insight: how vulnerabilities are created, found, weaponized and mitigated in the age of AI. It is written for anyone who builds or defends software, from security engineers and researchers to architects and AI practitioners.

What the book covers

How AI is reshaping the attack surface. New trust boundaries in AI-native systems, the evolving structure of modern vulnerabilities, and how intelligent agents observe, predict and exploit system behaviour.

AI-driven discovery. LLM-assisted code analysis and triage; program analysis, symbolic execution and fuzzing; automated workflows for large-scale vulnerability hunting.

Modern exploitation techniques. Payload design in AI-observed environments; evasion, automation and stealth; where large language models meet exploit development.

Post-exploitation in the AI era. Persistence and lateral movement when systems watch back, multi-agent threat behaviour, and counter-forensics in a world of autonomous detectors.

Defense and resilience. Detection engineering, deception and autonomous response; AI-strengthened secure-by-design principles; real-world defensive frameworks and patterns.

The zero-day economy. Markets, brokers, incentives and geopolitical pressures; the economics of weaponized vulnerabilities; how AI changes the value and lifecycle of a zero-day.

The future. Quantum-era implications, the evolution of cryptography, and long-term defensive strategy in an AI-first world.

Who it is for

• Security engineers on red, blue and purple teams
• Penetration testers and exploit developers
• Software architects and site reliability engineers
• AI and ML engineers working on safety and security
• CISOs, CTOs and cybersecurity leaders
• Researchers in AI, machine learning and computer security