Caleb Sima is the co-founder and CTO of SPI Dynamics, a web application security products company, and has more than 12 years of security experience. His pioneering efforts and expertise in web security have helped define the direction the web application security industry has taken. Caleb is a frequent speaker and expert resource for the press on Internet attacks and has been featured in the Associated Press. He is also a contributing author to various magazines and online columns. Caleb is a member of ISSA and is one of the founding visionaries of the Application Vulnerability Description Language (AVDL) standard within OASIS, as well as a founding member of the Web Application Security Consortium (WASC).