Explore Security Hackathons 2026

Join hackathons focused on cybersecurity, encryption, and digital defense systems.
Explore Security hackathons online and in-person
IN-PERSON No More Cyber Bullying!

June 30, 2025 - Oct. 30, 2025

Ended

About the challenge: You need to make a project that will stop cyber-bullying for good! Get started: Some example projects that you can make is …

ONLINE AI Bias Bounty Hackathon

June 28, 2025 - July 3, 2025

Ended

⚠️ IMPORTANT: You can participate as an individual or form a team of 2-4 members. Still assembling your team? Start by registering here on Devpost. …

ONLINE win_Defi_forge

June 12, 2025 - July 10, 2025

Ended

Register Your Team https://forms.gle/CXCW2m1uT96KsTLF6Fill this Google Form to officially join the hackathon as a solo dev or as a team (up to 4 members). Introduction …

IN-PERSON NY Tech Week Minute Hackathon - Fintech, Life Sciences, Security & Defense

June 4, 2025

Date TBD

New York Minute Hackathon ​Organized in a collaboration between PensarAI, OSS4AI, Coeus Collective, and H*QUOTIENT, we're bringing together the brightest minds to tackle real-world challenges …

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health · security · United States
ONLINE FutureX Startup Cult

May 24, 2025 - May 25, 2025

Ended

FutureX Startup Cult isn’t your typical hackathon. It’s a 48-hour online challenge where students, solo builders, and first-time founders turn raw ideas into real startups …

IN-PERSON Privathon Vancouver

May 24, 2025 - May 25, 2025

Ended

For more information, please visit our event page: https://privathon.xdhacks.org To register for the event, please register via Devpost and complete this google form: https://forms.gle/U5e7EgdKtJdUiKmo8 Privathon …

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beginner · security · social · Vancouver, British Columbia, Canada
IN-PERSON yard work: the coolest ai hackathon ever

April 12, 2025 - April 13, 2025

Ended

RSVP here https://lu.ma/m8fug6hxAbout the challenge Yardwork is the first AI hackathon where hacks have to be approved as sufficiently cool before the hacking starts. We …

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machine learning · security · Cambridge, Massachusetts, United States
ONLINE BlossomHack 2025

March 22, 2025 - March 23, 2025

Ended

WHAT IS BLOSSOMHACK? The largest hackathon hosted at Ohio University by OU Cybersecurity Club, OUGDA, NSBE, SOftware Dev Club, ACM, IEEE, and CEO. This event …

IN-PERSON 2025 Crack the Code Hackathon @ Concordia University Irvine

March 22, 2025 - March 23, 2025

Ended

Welcome to Crack the Code's 2025 Concordia University Hackathon! This hackathon is your chance to build and innovate in the world of cybersecurity. Whether you're …

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beginner · machine learning · security · Irvine, California, United States
ONLINE AI Verse Hackathon

March 19, 2025 - March 22, 2025

Ended

AI Verse is an exhilarating 72-hour online hackathon that invites the brightest minds across India to push the boundaries of AI innovation. Hosted by Augment.AI, …

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