Whatdahack
Capture The Flag
A professional cybersecurity challenge platform by Whatdahack. Test your skills, climb the rankings, and sharpen your edge in real-world security disciplines.
A professional challenge environment for cybersecurity practitioners
Whatdahack CTF is a recurring security challenge platform designed to develop real-world security skills across the Whatdahack community. Challenges span multiple disciplines — from web security to cloud infrastructure, reverse engineering, and beyond.
Multi-discipline challenges
Curated challenges across web, cloud, forensics, scripting, and more — aligned to real security scenarios.
Live scoreboard & rankings
Track your progress in real time. Compete for rankings and demonstrate measurable skills growth.
Team & individual participation
Participate solo or in teams. Collaborate, learn, and contribute to a stronger security culture.
Regular cadence
New challenges released on a weekly basis, keeping content fresh and skill development continuous.
Security disciplines covered
Challenges span a broad range of security domains, from hands-on exploitation to theoretical security fundamentals.
Skills development with real-world impact
CTF competitions are one of the most effective formats for building applied security skills. This platform gives Whatdahack a structured, ongoing environment for doing exactly that.
Hands-on skill development
Apply security concepts in realistic, scenario-based challenges rather than passive study.
Secure-by-design mindset
Understanding how things break is the foundation of building things that don't. These challenges develop that mindset.
Recognition & rankings
Earn points, climb the leaderboard, and track your progress against peers across the globe.
Community & collaboration
Build connections with security-minded colleagues. Stronger teams solve harder problems.
Start solving challenges today
Browse the full challenge library, check the live scoreboard, and push your security skills to the next level.