Challenge Types (chals)
These are by no means the only categories, but the following are very common in CTF challenges.
Name
About
Cryptography
Code breaking secrets hidden in numbers and symbols
Reverse Engineering
Figure out how things work, then break those things!
Pwn
Finding vulnerabilities to exploit and gain control
Forensics
Investigate PCAPs, metadata, and memory to get the full story
Web
The attack surface of the modern world!
Misc
Weird jails, weird languages and more
OSINT
Find stuff from publicly available info
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