- sniffed the traffic for the android security system
- disassembled their secret apk they send when you cna decode the messages
- rewrote the whole service
- found a message 'contact us' in the code, wrote them
- they called him back a few months later
- didn't take him on because he wasn't good enough in developing a base64 encoder over a telephone interview
So these are the mega-brains at google.