http://www.itsecurityguru.org/2015/03/17/spotting-the-threat-within/
http://www.itsecurityguru.org/2015/03/16/attacking-from-the-outside/
https://youtu.be/h0kgB9S_O6Y?list=PLCNN_qZrFLnKShMRbSxtn0rD5FYLfldDJ