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Hosted by the students of the Computer Security Club at Thomas Jefferson High School for Science and Technology in Northern Virginia, USA, this CTF challenge had a solve rate of about 5%.

This task was one of the most vexing challenges in ImaginaryCTF 2025.

UMDCTF 2025, the ninth annual CTF from the University of Maryland’s cybersecurity crew, had some fun challenges.

On November 8, the University of Delaware, in partnership with BSides Delaware, hosted a 36-hour CTF competition.

In this CTF challenge, man’s best friend becomes a CTF player’s best asset!

This challenge turned out to be quite frustrating for some contestands.

Sometimes you have to replace your old PC with a better one.

One of the nicest things added in the recent Windows 10 feature updates is the Windows Subsystem for Linux.

For many years web developers have used various substitutes for a real grid layout in CSS.

The main theme of the 9th edition of Riverwash party was the Wild West.