Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

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Challenge	CTF	Weight	Category	Has
echo_chamber #integer-overflow #content-length #heap-overflow	SekaiCTF 2026	79.25	Pwn	files wu 1