31 October 2025 – 18:00 – Online

Haunted Pumpkin CTF

We would like to thank all the 800+ people who took part in the CTF, they did an amazing job! Only 2 teams managed to complete all different challenges 30 hours!
Congratulations to the three fastest teams of our second official competition:

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🎃 Something is brewing up… and it smells like… a CTF!
A strange stir echoes in the shadows… a terrifying scream in the far distance…

🕵️‍♀️ We are thrilled (and slightly scared) to announce our second official OSINT CTF – Halloween Edition! For 30 haunting hours, your OSINT tools and investigative skills will be tested to the limit.

Get your squad ready: team of two participants will work best to survive the challenges released by the awakened pumpkin. Though if you dare, you can also ride solo 🧟‍♂️…

📅 Team registration opens on October 28th on ctf.osintswitzerland.ch – stay sharp, stay together… and maybe you’ll make it through the night.