Reporter, CSO Online
John Leyden is a reporter covering cybersecurity for CSO Online with more than 20 years of professional experience in computing and network security journalism. He holds a degree in electronic engineering from City University, London, providing technical foundation for his sophisticated security reporting. Before joining CSO Online, Leyden served as writer and editor for PortSwigger's The Daily Swig, covering web security vulnerabilities and hacking culture, and co-hosted the SwigCast podcast. He spent 17 years at The Register covering network security, enterprise technology, and cybersecurity developments, earning recognition including the BT Enigma award for contributions to technology journalism. His early career included work as a crime reporter at a Manchester newspaper, providing perspective on both criminal enterprise and investigative journalism. Leyden's current reporting for CSO Online addresses artificial intelligence security risks, ransomware recovery, zero trust architecture implementation, cybersecurity workforce development, and supply chain security challenges. His extensive experience and technical background make him a respected voice analyzing how cybersecurity threats evolve and how organizations should respond to emerging risks.
United Kingdom
