Christien, aka DilDog, is a member of L0pht Heavy Industries and the Co-Founder and Chief Scientist of Veracode. Prior to Veracode, Christen was the founder of @stake. At L0pht, Christen co-authored L0phtCrack and the AntiSniff NIDS. His other activities with L0pht included significant security research, publication work, and public speaking engagements.