Previously, Dr. Geer served as CTO of @stake, a leading digital security consulting firm. Dr. Geer also ran the development arm of MIT's Project Athena, where his staff on his watch pioneered Kerberos, the X Window System, and much of what we take for granted in distributed computing. In past positions as a consultant and an officer in a number of startups, he has provided industry leaders with high-level strategies in all matters of digital security and in promising areas of security research. He is a widely noted author in scientific journals and the technology press, and has co-authored several books on risk management and information security.