Explore Security Hackathons 2025

Join hackathons focused on cybersecurity, encryption, and digital defense systems.
Explore Security hackathons online and in-person
ONLINE SummerCodeX 2025 | CODE CRUNCH x ColorStack at FIU x CAHSI at FIU

July 21, 2025 - July 29, 2025

Ended

Dates: July 19 – 26, 2025 Website: Link here Winners: Link here Wiki: SummerCodeX Hack 🌐 Wiki: https://go.fiu.edu/hacksatfiu 🛠️ Hacks ToolKit 📄 2025–2026 Hacks at …

ONLINE 2025 Techinance Cyberhack

July 1, 2025 - July 13, 2025

Ended

Theme: Combating cybersecurity risks + spreading awareness on data privacy & education The Challenge: Build innovative solutions that address cybersecurity threats or educate others on …

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

Ended

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 …

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