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Industry Leaders

About Our Experts

Colin Whittaker

Founder & Director at Informed Risk Decisions Ltd
Colin is a leading payments security expert with extensive experience shaping global risk strategy. A former PCI SSC Board of Advisors member, he drove major security and compliance initiatives at APACS and Visa Europe. Now an independent consultant, he advises diverse organizations and frequently speaks and publishes on cybersecurity and information risk.

Apostol Vassilev

Ph.D., Research Supervisor, Computer Security Division at NIST.
Apostol is a leading NIST and NCCoE expert in trustworthy AI, cybersecurity, adversarial machine learning, and robust AI for autonomous systems. He contributes to major standards efforts, serves in key OWASP AI security roles, holds a Ph.D., over 60 papers, multiple patents, major awards, and is widely recognized across industry and academia.

Nicholas Geyer

Sr. Product Marketing Manager for Third-Party Management at OneTrust
Nicholas is the Sr. Product Marketing Manager for Third-Party Management at OneTrust. He leads go-to-market strategy and product positioning for TPRM solutions, helping organizations understand evolving vendor risks and adopt data-driven, scalable approaches to building secure third-party ecosystems through modern technology.