Explore Security Hackathons 2025

Join hackathons focused on cybersecurity, encryption, and digital defense systems.
Explore Security hackathons online and in-person
IN-PERSON DefInSpace

Oct. 10, 2025 - Oct. 11, 2025

Ended

DefInSpace est un hackathon innovant qui réunit des esprits créatifs et passionnés autour d’un défi unique : imaginer en 24h des solutions pour la défense …

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industry · science · security · social · transport · Mantes-la-Jolie, Île-de-France, France
IN-PERSON Global MCP Hackathon

Aug. 12, 2025 - Sept. 8, 2025

Ended

Unleash your creativity in the Descope Global MCP Hackathon. Build secure, purposeful AI agents and MCP servers with over $100K in cash prizes and developer …

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ai · low/no-code · machine learning · security · San Francisco, California, United States
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

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