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

Difficulty Beginner Easy Medium Hard Insane

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Higher weight ≈ harder, more prestigious event.

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8 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Impostor	CTF@AC 2026 Quals	–	OSINT	files
Vali_Validatorul	CTF@AC 2026 Quals	–	OSINT	files
day_walk	CTF@AC 2026 Quals	–	OSINT	files
grocery_run	CTF@AC 2026 Quals	–	OSINT	files
ancient_house	CTF@AC 2025 Quals	24.53	OSINT	files
holiday_trip	CTF@AC 2025 Quals	24.53	OSINT	files
parting_ways	CTF@AC 2025 Quals	24.53	OSINT	files
prison	CTF@AC 2025 Quals	24.53	OSINT	files