CAPTURE THE FLAG

Ready. Set. PWN!

From Jeopardy-style challenges (web, crypto, reversing, forensics, etc.) to full-pwn machines and AD labs, it’s all here! Join a public CTF or organize one for your team, event, conference, university, or company.

INDIVIDUALS

Why CTF Players love it

CTF competitions are one of the most fun ways to
advance, challenge, and prove your cybersecurity skills
in action. Join as an individual or a team.

  • Top-notch hacking content created by HTB
  • Content diversity: from web to hardware
  • Scalable difficulty: from easy to insane
  • Live scoreboard: keep an eye on your opponents
  • Scalable difficulty across the CTF
  • Easy to register, create a team and join a CTF
  • Captivating and interactive user interface
  • Real-time notifications: first bloods and flag submissions

Flags Submitted

70+

CTFs Hosted

2,860

Teams Competed

World-Class Hacking Content

Covering all challenge categories and difficulty levels with the latest and
must-known attack paths and exploit techniques.

Full Pwn-Style

Boot2Root machines, custom to your needs, with diverse difficulty, attack paths, and OSs. Players will need to find the user and root flag. Get ready for action!

AD-Style

Active Directory labs simulating real-world enterprise environments with the latest attack techniques. Try to capture all the flags and reach Domain Admin.

Jeopardy-Style

All challenge types are included in this category. Pick the ones that best fit your company's CTF requirements. From reversing and web to pwn and hardware.

Events & Communities

Why CTF Hosts love it

Are you a local hacking community and there is a gathering coming up? Or a massive information security event? Host a CTF!

  • Top quality content for all skills
  • CTF hosting and support
  • Live scoreboard
  • Team management
  • User progress report
  • And most importantly, players love it!
Universities

Stiff theory and exhaustive textbooks can
sometimes make an academic cybersecurity
curriculum too theoretical.

Companies

CTF competitions are a great way to increase
awareness and skill set across an organization,
while also incorporating gamification to its
teams’ cybersecurity training.

Our CTF Players & Hosts

They played, they captured the flag, they had fun, they learned! And here is what they
had to say after their Hack The Box CTF experience.

CTF FAQ

CTF (aka Capture The Flag) is a competition where teams or individuals have to solve a number of challenges. The one that solves/collects most flags the fastest wins the competition. Once each challenge has been solved successfully, the user will find a "flag" within the challenge that is proof of completion. If teams are tied, the one that finishes the challenges the fastest will appear higher on the scoreboard.
The team captain submits to HTB the Team Name and their contact details in the form above. The Team created in ctf.hackthebox.eu should include only business emails and belong to the same domain. Failure to do so will result in disqualification.
As part of our effort to keep the competition fair for everyone (both smaller and larger business workforces), the teams can be 10 members maximum, 1 member minimum. CTF teams with more players will be disqualified from the competition and prizes.
All prizes will be shipped to the company address provided by the CTF captain of the winning team.
CTF for
Businesses

host a ctf
CTF for
Universities

LEARN MORE
CTF for
Communities

GET STARTED