🌐 Web
Robots.txt tricks, headers, cookies, and a client-side auth bypass.
🔐 Crypto
Base64, ROT13, Caesar, XOR, hex, binary, and layered encodings.
🖼️ Steganography
Hidden data in pixels, whitespace, metadata, and file structure.
🧩 Misc
Morse code, careful reading, and a bit of hash cracking.