Danfeng 'Daphne' Yao, Virginia Tech (IMAGE) Virginia Tech Caption Danfeng "Daphne" Yao of Virginia Tech's College of Engineering is a leading authority on the development of ways to detect anomalies in computer programs, systems, and networks. Credit Virginia Tech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.