Thomas d'Otreppe "Mister X" is a wifi hacker and the author of Aircrack-ng, a Wi-Fi auditing suite as well as OpenWIPS-ng, an open source WiFi Intrusion Prevention System. He has designed Offensive-Security WiFu, a proactive wireless security course, with Mati Aharoni (muts) and also contributes to Kali Linux (and contributed to BackTrack Linux). He works as a software developer for MainNerve.Twitter: @aircrackng @openwipsng