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How to solve CTF Challenge types Jeopardy style CTFs challenges are typically divided into categories. I'll try to briefly cover the common ones. Cryptography - Typically involves decrypting or encrypting a piece of data Steganography - Tasked with finding information hidden in files or images Binary - Reverse engineering or exploiting a binary file Web - Exploiting web pages to find the flag Pwn - Exploiting a server to find the flag Where do I start? If I managed to pique your curiosity, I've compiled a list of resources that helped me get started learning. CTF veterans, feel free to add your own resources in the comments below! Learning [Hidden Content] - Introduction to common CTF techniques such as cryptography, steganography, web exploits (Incomplete) [Hidden Content] - Tips and tricks relating to typical CTF challenges/scenarios [Hidden Content] - Explanations of solutions to past CTF challenges Resources [Hidden Content] - CTF event tracker [Hidden Content] - Comprehensive list of tools and further reading Tools (That I use often) binwalk - Analyze and extract files burp suite - Feature packed web penetration testing framework stegsolve - Pass various filters over images to look for hidden text GDB - Binary debugger The command line 🙂 Practice Many of the "official" CTFs hosted by universities and companies are time-limited competitions. There are many CTFs however that are online 24/7 that can be used as practice and learning tools. Here are some that I found to be friendly for beginners. [Hidden Content] - A collection of various user-submitted challenges aimed towards newcomers [Hidden Content] - A series of progressively more difficult pwn-style challenges. (Start with the bandit series) [Hidden Content] - Yearly time-limited CTF now available to use as practice Conclusion CTF is a great hobby for those interested in problem-solving and/or cyber security. The community is always welcoming and it can be a lot of fun tackling challenges with friends. Thank you for reading!