A complete packet geek, George enjoys discovering and exploiting (during pen tests, of course) technical vulnerabilities at all network stack layers and has contributed to numerous open source security projects over the years including thp, tcpdump and IDABench. A respected advisor to government, industry and academia, George has been an instructor for The SANS Institute since 2000 and is currently Technical Director of Intelligence and Response for Northrop Grumman, one of the world’s largest aerospace and defence companies.