Capture The Flag or CTF is the name given to challenges focused on computer security. They are very interesting because, in a fun way, anyone can learn about hacking.

Some types of CTFs that we can find are the following:

  • Crypto: Hidden messages using encryption or encoding techniques
  • Forensics: analysis of any kind of data
  • Stego: multimedia that hides information inside
  • PWN: vulnerabilities in servers
  • Reversing: analysis of binary files
  • Web: website vulnerabilities
  • Programming: scripting
  • OSINT: open source research
  • Trivia: questions about computer security
  • Misc: random challenges

List of CTFs and upcoming events