Josiah Hagen Josiah is a security researcher with Trend Micro TippingPoint DVLabs Advanced Security Research Group. He has a BA in mathematics and computer science from Oberlin College and 16 years of professional software development experience. Josiah has eight years in the AI field, with work focused on graph theory, search, and deductive inference on large knowledge bases. Subsequent work in AI included applying machine learning techniques identifying failure modes in email traffic. He has additional experience in systems development, including clustered NAS/SAN development and integrated control systems. Current interests include clustering, classifying and understanding network traffic.