Bug bounty, attack-defense exercises, 24/7 training range. Pick your format.
Test your skills. For real.
The full ecosystem for offensive security practitioners. Bug bounty, hyperrealistic attack-defense competitions, and a 24/7 training cyber range — under one roof, year-round.
best users of our platform
has already been paid to bug hunters
Standoff Cyberbattles every year
Find real vulnerabilities in real companies and get paid. Large community of serious hunters. Private programs for the best ones.
1,500+ VMs simulating real industries — energy, finance, oil & gas. Red vs blue. 7,500+ veterans. Seriously intense.
24/7 cyber range. Real IT infrastructure replicas. 4 difficulty levels, seasonal challenges, leaderboard. Free, no time limits.