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Jean-François Maes

Certified InstructorCEO at Offensive Guardian

Specialities

Offensive Operations

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Jean-François Maes

About Jean-François Maes

Jean-François Maes is a SANS Certified Instructor and course author, CEO of Offensive Guardian, and founder of Helix Labs, operating at the forefront of offensive security, adversary emulation, and detection engineering. He is the lead author/instructor of SEC565: Red Team Operations and Adversary Emulation and co-author/instructor for SEC699: Advanced Purple Teaming - Adversary Emulation & Detection Engineering, where he equips security professionals with the skills to simulate real-world attackers and strengthen defensive visibility across enterprise environments.

Over the past decade, Jean-François has built a career grounded in hands-on offensive operations, working across penetration testing, red teaming, and purple team engagements. He previously served in roles at NVISO, TrustedSec, and contributed to the Cobalt Strike ecosystem, focusing on adversarial tradecraft and tooling. His experience leading large-scale red team operations directly informs the realism of the course labs.

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