Historically, game developers have not been concerned with security issues outside of cheating. Moreover, outside of the MMO arena, even issues of cheating received relatively little attention. But as other vulnerabilities are closed, malicious software developers may be turning their sights on the increasingly large multiplayer game market. Additionally, many of the design and development patterns commonly used in computer game development are ideal for exploitation. This two hour lecture includes a comprehensive overview of the issues involved in writing secure code, as well as techniques for assessing risk, and building tools and techniques for finding and remediating weaknesses without overwhelming the schedule.