1.fail2ban / fail2ban
Daemon to ban hosts that cause multiple authentication errors
+57 stars
from 18,872 · score 4.06
Ranked by Attention Score: stars gained over the last 7 complete days
6 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
Daemon to ban hosts that cause multiple authentication errors
Main Sigma Rule Repository
Local-LLM alert triage for self-hosted SOCs.
🚌 Threat Bus – A threat intelligence dissemination layer for open-source security tools.
🛡️ Free AI that blocks hackers while you sleep. Runs on cheap hardware. When someone in Tokyo gets attacked, you're protected in 30 seconds. No fees. No experts needed. Just protection. One node's detection → everyone's protection.
Advanced Phishing Protection: Suricata rulesets open and free