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Hacking APIs Conference New York

Where APIs break, and real security gets built

14 May 2026 • 360 Madison Ave, New York

New York runs on APIs, from global banking to high-frequency trading. That makes it a prime target for attackers and a hotspot for innovation. HAC NYC brings hackers, security engineers, and enterprise defenders together for deep dives into real threats, live demos, and tactics that hold up under pressure.

Attend

Speak

Sponsor

500+

participants

300+

companies

20+

speakers

20+

sessions

Teams stepping into the arena

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

Turn hacks into lessons, and lessons into stronger APIs

Hack live

Watch APIs break in real time, and learn how to fix them before attackers do.

Hands-on labs

Stop listening, start doing. Test real tools and defenses on real systems.

Unfiltered war stories

Hear how breaches happened and what actually stopped them—straight from the people who lived it.

Practical, not theoretical

Get tactics and frameworks you can use immediately.

Community that builds and breaks

Join hackers, defenders, and engineers who care about one thing: making APIs stronger

What past HAC builders and breakers say

The sessions provided valuable insights into how APIs are driving innovation and supporting digital transformation across industries. It was also a great to connect with others working in this space and exchange ideas. Looking forward to applying some of these learnings in my work.

Romain Olivier

Software Engineer at Ciril GROUP

Two days packed with great conversations and presentations, including the OpenAPI Initiative's OAI Track. Congrats to the team for getting to record attendance, and see you all next year!

Erik Wilde

Principal Consultant at INNOQ

Brilliant to collaborate with our API expert and leadership peers at apidays, exchanging meaningful insights on how we can deliver better experiences for our global clients and colleagues.

‍

Chris Jones

Product Owner & Lead at Swiss RE