In the last 15 years Gerardo 'gera' Richarte has been dedicated to computer security. He has spoken in different conferences including BlackHat, CanSecWest and PacSec among others, and taught assembly language and exploit writing classes for private, public and military students. For the last 12 years he's been part of Core Security Technologies, where he was a Sr. Security Consulting, Sr. Security Software Engineer and Reverse-Engineer, and has been working, for the last 5 years, as an Expert Exploit Writer, technically leading the exploit writing team for the CORE IMPACT product. During all these years he's published some papers, advisories and open source tools as a humble thank you to the community that has given so much to him.