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NullOrigin CTF Qualifiers

Reasonable first CTF
Starts
Ends
Runs for
12 hours
Format
Jeopardy (online)
Rating weight
Unrated by CTFtime
Teams registered
10

Run by CyberXoX, with prizes listed on CTFtime.

Event siteRegister on CTFtime

What the organisers say

NullOrigin CTF 2026 Qualifiers is the official qualification round for NullOrigin CTF 2026, an international online Capture The Flag (CTF) competition organized by Cyber HX. The qualifier is a 12-hour Jeopardy-style CTF where teams of 1–4 members will solve real-world cybersecurity challenges across Web Security, Cryptography, Reverse Engineering, Digital Forensics, OSINT, Binary Exploitation, and Miscellaneous...

Prep briefing

Nothing in the writeup archive matches this event, which usually means one of two things: it is a first edition, or its previous editions ran under a different name. Either way there is no honest category breakdown to give you, and inventing one from the title would be worse than saying so.

The generic answer still holds: the first-hour triage guide covers what to do with a challenge before you know what it is, and the workspace identifies most encodings and file types on the first paste.

Also starting that week