Discover CrowdSec, a collaborative, free and open source security automation platform relying on both IP behaviour analysis and IP reputation. CrowdSec identifies threats and shares IP addresses behind malevolent behaviours across its community, to allow everyone to block them preventively. Already used in 80 countries across 6 continents, the solution builds a real-time IP reputation database of currently ~200.000 IPs that keeps growing every day and benefits all community members who have each other's backs while forming a global defence shield.