Current investigation
UK OSINT Community CTF
One investigation. Every month.
A monthly OSINT challenge built to test how you search, verify, connect and evidence information from the open web.
- Passive OSINT only
- Open to all skill levels
- Released monthly at 17:00 UK
A complete investigation cycle.
A new investigation is released on the first day of every month at 17:00 UK time.
Briefing
Receive a clear objective, permitted methods and defined scope.
Investigation
Use passive OSINT techniques to find, connect and verify the evidence.
Submission
Submit the flag and place on the live scoreboard.
Investigate. Submit. Place.
Open the current investigation or follow the live competition through the platform scoreboard.
Submission protocol
Exact answers matter.
Answers must be submitted in the exact format shown. Check capitalisation, spacing and punctuation before submitting your final flag.
osintuk{answer}
Built by UK OSINT Community CTF.
A recurring challenge for investigators, researchers, journalists and curious minds who want to sharpen their open-source intelligence skills through practical investigation.