Get started with hacking in the academy, test your skills against boxes and challenges or chat about infosec with others

Hack2skill unites innovators via hackathons & AI events. Join our Discord—your hub for updates, support & teamwork.

Comunidad de hacking ético de habla hispana, ¡únete y aprende ciberseguridad con nosotros!

A month-long celebration of open-source projects, their maintainers, and the entire community of contributors.

A supportive community of Cybersecurity students and successful professionals. Get help entering the field - for free!

HackThisSite is a free, safe and legal training ground for hackers to test and expand their ethical hacking skills.

Learn about ethical hacking and information security from the ground up.

Discover what actually works in AI with Kaggle. Join 30M+ builders, researchers, and labs evaluating agents, models, and frontier technology through crowdsourced benchmarks, competitions, and hackathons.

Your spot for hands-on cybersecurity, red teaming, ethical hacking, and nonstop CTF action. Learn to think like an attacker, sharpen your skills, and grow with a community that actually gets it. Jump in and earn your OvO tag.

Community server of the free and ethical hacking learning platform Root-Me

A community for bug bounty hunters and security researchers who like to hack on the Intigriti platform!

This is an educational server for those interested in ethical hacking & cybersecurity.