Pick your battleground.

The Hacking APIs Conference (HAC) is the proving ground for API security. Each event brings together hackers, security pros, and engineers to share what actually works, through live hacking sessions, research deep dives, and real-world case studies.

Sept

Hacking APIs Conference London

23 September 2025

Convene 155 Bishopsgate, London

Event info

9-11

Dec

Hacking APIs Conference Paris

9-11 December 2025

CNIT Forest, Paris

Event info

May

Hacking APIs Conference New York

14 May 2026

360 Madison Ave, New York

Event info

For the people who build, break, and defend APIs every day.

Business leaders

Push systems to their limits, discover flaws others miss, and share your tactics with peers who speak your language.

Security engineers & defenders

Learn how attackers think, see real exploitsin action, and sharpen your incident responsegame.

Developers & DevSecOps

Ship faster without shipping vulnerabilities. Get hands-on with tools and practices that harden your APIs before they hit production.

Security leaders & CISOs

Understand where your risks really live. Hear unfiltered stories from those who’ve handled breaches, and how to avoid becoming one.

Testing tools, skills, and ideas against real-world threats.

Join the hackers and security pros who brought their skills, and left sharper.

Here’s how you can be part of it

Speak at HAC

Got a war story, zero-day research, or a defense strategy that worked when everything was on fire? This is your stage.

Apply to speak

Sponsor HAC

Support the event that’s bringing real API security into the spotlight, and get in front of the people who live it every day.

Sponsorship info