CTFs (Capture The Flag) are cybersecurity competitions where participants solve challenges to obtain flags — short secret strings that prove you solved the task.

Challenge types

• Web — Exploiting vulnerabilities in web applications.
• Pwn — Binary exploitation to gain control of a process or system.
• Forensics — Analyzing files and traffic to recover hidden information.
• Crypto — Cryptography and math to break or decode secrets.

General workflow

Flag example

> cat flag.txt
BFX{h4ck_th3_futur3}

Tip

01