The Challenge Oh shit.. (!) Our network has been compromised and data stored on an air-gaped device stolen but we don’t know exactly what has been extracted and how? We have 24/7 video surveillance in the server room and nobody has approached the device.. Here is all I have, could you please give us a hand? forensic-data.zip This challenge was labelled “misc” and “forensics”, and had 73 solves by the end of the competition....

The Challenge Our lab administrator has just passed out from a strange virus. Please help us find the password to his messaging app so we can identify what he was working on and save his life. Herald.apk This challenge was labelled “mobile” and “reverse”, and had 58 solves by the end of the competition. The Solution TL;DR is at the end First things first, let’s make sure this is a normal APK:...