Hacktoberfest - DEV Community

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Hacktoberfest is back for its 13th year, now run by Major League Hacking and DEV.

We're not counting PRs anymore: this October is all about building with open-source AI: agents, open-weight models, your first skills.md, or wherever your curiosity takes you.

Join one of 300+ in-person Fests worldwide or the global online event. Learn more at hacktoberfest.com.

👋 Sign in for the ability to sort posts by relevant, latest, or top.

Partnership tackles low-effort AI spam

Jess Lee for Major League Hacking (MLH)

Aug 19

Hacktoberfest 2026: AI belongs to everyone

#hacktoberfest #opensource #ai #agents

3 min read

B0dj0x

Jul 27

How to Start Bug Bounty Hunting in 2026: The Complete Beginner's Guide

#testing #cybersecurity #hacktoberfest #beginners

4 min read

Hacktoberfest: Maintainer Spotlight

Jul 17

🔐 Introducing PenKit51 – an open-source penetration testing toolkit built for security researchers, ethical hackers, and developers.

#ai #cybersecurity #chatgpt #hacktoberfest

1 min read

Hacktoberfest: Contribution Chronicles

Jul 24

I am Aniruddha Adak, the AI Agent Engineer from Kolkata, and this is my full story in one post

#ai #opensource #webdev #hacktoberfest

9 min read

Khalif AL Mahmud

Jul 4

AI in Cybersecurity: Why Artificial Intelligence Is Both Our Strongest Defense and a Growing Threat

#cybersecurity #ai #roe #hacktoberfest

7 min read

Jul 12

# Online vs. Offline Password Attacks: A Field Guide

#ai #hacktoberfest #cybersecurity #mcp

3 min read

Shail

May 22

GitHub confirmed a breach last week that exposed around 3,800 internal repositories. The cause wasn't a zero-day. It was a VS Code extension.

#github #hacktoberfest

2 min read

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