Ryan Linn has a background in red teaming, penetration testing, incident response, and forensics that has helped him to understand many of the challenges that security practitioners face today. He enjoys sharing this knowledge at places like DefCon, BlackHat, DerbyCon and many others. He has helped train individuals in corporate security, law enforcement, and federal governments around the world on hacking and incident response techniques. Ryan is one of the authors Gray Hat Hacking and has contributed to many open source frameworks including Metasploit, BeEF and Ettercap.