Gerhard is interested in all things concerning IT security - especially when it comes to hardware or radio protocols. He successfully studied IT security at Aalen University and is working at SySS GmbH since 2014 as IT security consultant and penetration tester. Gerhard was speaker at GPN 2013 - a conference organized by the Chaos Computer Club (CCC) in Karlsruhe - where he talked about hacking RFID-based student cards. He is also author of the Mifare Classic Tool Android app.