About

Ray Heffer

Field CISO · Privacy Researcher · Author of the ODSF

Ray Heffer
Minimize what can be known

Ray Heffer works at the intersection of cybersecurity, privacy, and open-source intelligence, and is the author of the OSINT Defense & Security Framework (ODSF). Everything here follows a single motto: MINIMIZE WHAT CAN BE KNOWN.

His passion for technology began as a child with a Commodore 64, which led him to bulletin boards and the demo scene. In 1993, while at college in England, he found a major flaw in Novell NetWare, gaining access to the campus-wide system. It caught the attention of his programming tutor, who then shared his insights into cracking and writing computer viruses.

His professional career began in the mid-1990s at an ISP, working on Linux security, penetration testing, and honeypot deployments. That work gave him an early, first-hand view of threat actor tactics, from the underground warez scene to the rise of botnets. He went on to spend a decade at VMware as a Field CISO and Principal Architect, leading Secure DevOps practices integrated with privacy engineering and helping global enterprises deploy secure, compliant systems at scale in highly regulated environments.

Across thirty years, and roles with VMware, Amazon Web Services, and major clients in Australia, New Zealand, Europe, and the Middle East, Ray has earned recognition as an authority in secure cloud architecture and privacy. Today, as a Field CISO at Veeam Software, he combines deep technical practice in GenAI security, cloud architecture, and secure DevOps with strategic guidance for CISOs and executive teams. He hosts The Lockdown: Practical Privacy & Security podcast, ranks in the top 1% on TryHackMe, and still spends many evenings coding, researching, and exploring emerging privacy techniques.

  • CISSP (ISC)² Certified Information Systems Security Professional
  • CEH Certified Ethical Hacker
  • VCDX #122 Double VMware Certified Design Expert
  • SANS CTF OSINT Summit CTF Winner, 2024