+150 points
Unlock Train Data
Reverse Engineer an APK to find the Java code that encrypts the flag. Find the vulnerability in the encryption algorithm to brute-force the key
+150 points
Pizza Pazzi
A medium Mobile reversing challenge for which I had an unintended solution to find 3/4 flags. It's a funny trick and I'm sure this can be used to solve some other challenges
+225 points
Stop the Heist
A medium 3 part challenge, finding traces of an attack. Explore a Windows filesystem and network capture to find every step and flags along the way
+200 points
Recover Pet Data
A medium web challenge with JSON Web Tokens for authentication. Upload your own public key to the server to verify tokens with your own keypair to forge JWTs