[Speakers]
Adversary Village at
DEF CON 33

Marcus J.carey

Principal Research Scientist at ReliaQuest, Author of Tribe of Hackers

Marcus J. Carey is the creator of the best selling Tribe of Hackers cybersecurity book series. Marcus is renowned in the cybersecurity industry and has spent his more than 20-year career working in penetration testing, incident response, and digital forensics with federal agencies such as NSA, DC3, DIA, and DARPA. He started his career in cryptography in the U.S. Navy and holds a Master's degree in Network Security from Capitol College.
Marcus was previously the founder and CEO of Threatcare (acquired by ReliaQuest), a venture-backed cybersecurity and software services company based in Austin, Texas. He regularly speaks at security conferences across the country. Marcus is passionate about giving back to the community through things like mentorship, hackathons, and speaking engagements, and is a voracious reader in his spare time.

Adversary Village kick-off

Friday | Aug 8th 2025
Adversary Village workshop stage | Las Vegas Convention Center

Adversary Village Panel
Keynote panel

Adversary Village at DEF ON 33 kick-off

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