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About CyberSoc

The Cyber Investigator CTF was created by Jack Tilson of Cyber Society at Cardiff University. There are over 30 free & predominantly OSINT-based challenges drawing from a range of scenarios, putting your analytical skills to the test!


This OSINT challenge is from the section Covert Operations and is worth 600 points.


I’ve been anonymously emailed some footage with a siren blaring in the background and a scene of chaos and panic, with people running out of open spaces seeking cover. I’m not quite sure what to make of this.

Could you take a look at the clip for me and let me know the name of the country in which it was filmed?

Will be a big help and a good start to building up a picture of what its all about.

Note: You have just 5 attempts for this so keep a sharp eye out.

Expected flag format: nameOfCountry

For completing this challenge, the audio file city_siren_clip.mp4 is provided as an video file.


After watching the video clip, it is not difficult to determine the country. This footage is from the country Israel.

The flag: Israel

This post is licensed under CC BY 4.0 by the author.