Timothy Mullen is a Principal Security Architect for a worldwide, multibillion-dollar commerce platform, and is rumored to operate somewhere in the vicinity of Seattle, Washington.

Also known as "Thor," he is the founder of the "Hammer of God" security co-op group. He is a member of American Mensa, a Microsoft Certified Trainer, has Microsoft Engineer certifications in all remotely recent operating systems, and has been awarded Microsoft's "Most Valuable Professional" (MVP) award in Windows Enterprise Security four years running.

Mullen has spoken at security conferences world-wide, and has recently published Thor's Microsoft Security Bible, his latest of many books. He has delivered by-invitation presentations to organizations such as Microsoft, the US Federal Court system, the Hong Kong Police and the Geneva School of Engineering. Mullen has also been named a Distinguished Speaker by the NSA and The United States Cyber Command. hammerofgod.com