After 21 years of classified intelligence work for the US Air Force, Brad transitioned to cyber security in 2010, and he is a currently a Threat Intelligence Analyst for Palo Alto Networks Unit 42. Brad specializes in network traffic analysis. He is also a handler for the Internet Storm Center (ISC) and has posted more than 140 diaries at isc.sans.edu. Brad routinely blogs technical details and analysis of infection traffic at www.malware-traffic-analysis.net, where he provides traffic analysis exercises and over 1,600 malware and pcap samples to a growing community of information security professionals.