27 Best Cybersecurity Communities

Bug bounty and ethical hacking Discord with 35k active members.

120k-member Telegram channel for breaking cybersecurity news and vulnerability announcements.

Focused community for malware analysis and reverse engineering discussions.

Hacker News threads discussing security, vulnerabilities, and threats.

120k-member Discord covering offensive/defensive security, threat intelligence, and infosec careers.

65k-member Discord for penetration testing, ethical hacking, and offensive security techniques.

180k-member subreddit dedicated to cybersecurity careers, jobs, and professional development advice.

2.5M+ user cybersecurity training platform with interactive labs, courses, and community forums.

TryHackMe's Discord community with 120k learning-focused members.

320k-member subreddit for security engineering, architecture, and defensive infrastructure discussions.

Q&A focused Reddit with 95k members for security professionals.

55k-member Discord for bug bounty hunters sharing vulnerabilities, strategies, and research writeups.

SANS Cyber Aces community with 65k for free security tutorials.

250k+ Facebook group for cybersecurity professionals sharing jobs, news, and industry networking.

Career-focused Facebook group with 42k cybersecurity professionals.

80k-member Discord server for cybersecurity career development, certifications, and job networking.

Real-time Telegram channel for security alerts and incident response.

1.8M+ user web security training platform with free courses and hands-on labs from PortSwigger.