Practice security like you practice algorithms.
Roadmap-driven CVE/CWE scenarios. You write the exploit, we boot the vulnerable target, our judge runs your steps and verifies the pwn signal.
Roadmap
Beginner to advanced. Networking, web, privesc, crypto, forensics.
Real targets
Every problem ships with a vulnerable Docker container. No multiple choice.
Multi-stage grading
Recon, exploit, exfil. Partial credit per stage.