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Mark Hayward is a UK-based cyber security expert, UK Armed Forces veteran, and author of 130+ books on Amazon. With 23+ years in information security — including government cyber security work across local and central UK departments — he writes at every level from beginner to advanced enterprise security.

Mark Hayward is a UK-based cyber security expert, educator, and author with over 23 years of professional experience in information security. A veteran of the UK Armed Forces — where he specialised in Communications and Information Technology — he subsequently built a career delivering cyber security services to local and central UK government departments, protecting critical public-sector infrastructure. Mark is the author of more than 130 published books on cyber security, available worldwide on Amazon in Kindle, paperback, and hardcover formats. His titles span every major security domain, from beginner fundamentals to advanced compliance frameworks including ISO 27001, SOC2, PCI DSS, and ISO 42001.

Mark Hayward is one of the UK's most prolific cyber security authors, with a career spanning more than 23 years in information security. His professional journey began in the UK Armed Forces, where he served in Communications and Information Technology — an environment that instilled the operational discipline, precision, and resilience that would come to define his approach to digital security.

After leaving the Armed Forces, Mark transitioned into civilian cyber security, working both independently and within prominent organisations to deliver security strategy and implementation. He provided dedicated cyber security services to local and central UK government departments, protecting critical public-sector infrastructure at scale.

Today, Mark channels over two decades of hands-on expertise into an extensive publishing programme. With 130+ books available on Amazon worldwide — organised across 10+ specialist series — he covers every major domain of cyber security: from Identity & Access Management, Incident Response, and Ethical Hacking, to Governance & Compliance, SOC2, PCI DSS, the NCSC Cyber Assessment Framework, and emerging areas such as AI Security and ISO 42001. His books are written for all levels, making professional-grade cyber security knowledge accessible to beginners and seasoned practitioners alike.