Tim Medin is the founder and Principal Consultant at Red Siege, a company focused to adversary emulation and penetration testing. Tim is also the SANS MSISE Program Director and a course author. Through the course of his career, Tim has performed penetration tests on a wide range of organizations and technologies. He gained information security experience in a variety of industries including previous positions in control systems, higher education, financial services, and manufacturing. Tim is an experienced international speaker, having presented to organizations around the world. Tim is also the creator of the Kerberoasting, a technique to extract kerberos tickets in order to offline attack the password of enterprise service accounts. Tim earned his MBA through the University of Texas.