Capture The Flag
One flag per challenge. Download the artifact, dig in, and submit what you find. Every solve adds to your total points.
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Forensics
A decommissioned server sat untouched in storage for nearly a decade before investigators created a forensic image of its desktop. Most of the files are routine maintenance documents. One encrypted archive, however, appears to contain the only remaining backup of an internal project. The archive is password protected. Investigators believe the system administrator wasn't particularly creative when choosing passwords. The key to the box was never far from the box.
Forensics
An undercover agent vanished during an operation. The only thing recovered from her phone was a single selfie taken minutes before communication was lost. Nothing in the photo looks suspicious. Her handler insists she always hid emergency messages in the pictures she sent. "A smile can hide more than emotions."
Forensics
A AI image-generation model at a research lab produced an image that was never supposed to exist. The picture appears to be nothing more than a peaceful sunset over a server farm. Security investigators found no visible signs of tampering, yet they are convinced the file still contains evidence of its true origin. Your task is to inspect the image carefully and recover the hidden flag.