Maarten Van Horenbeeck

About

Hello, I am Maarten. I am a cybersecurity executive with over two decades of experience, building programs that leave society a little more resilient every day.

I was Chief Security Officer at Adobe and Chief Trust Officer at Zendesk, and held leadership roles at companies including Amazon, Google, and Microsoft. I am currently a Cybersecurity Fellow at Adobe.

I grew up in Belgium and hold Master's degrees in Information Security and Intelligence and in International Relations. I served on the Board of the Forum of Incident Response and Security Teams (FIRST) from 2011–2021 (including as Chair) and led the IGF's Best Practice Forum on Cybersecurity for ten years.

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Latest perspective

Why sharing the why of a security decision matters February 28, 2026 · 9 min read

As a security leader, it really matters that we explain the "why" behind our decisions. Self Determination Theory, procedural justice, and practical tips for sharing your reasoning with teams.

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