Giovanni Vigna is a Professor in the Department of Computer Science at the University of California in Santa Barbara, and the Sr. Director of Threat Intelligence at VMware. Giovanni Vigna is also the founder of the Shellphish hacking group, who has participated in more DEF CON CTF competitions than any other group in history. His research interests include malware analysis, vulnerability assessment, the underground economy, binary analysis, web security, and the applications of machine learning to security problems. He is known for organizing and running, since 2003, a yearly Capture The Flag hacking contest, called iCTF, that every year involves dozens of teams around the world. He is an IEEE Fellow and an ACM Fellow.