Stefan Savage (born 1969) is an American computer science researcher, currently a Professor in the Systems and Networking Group at the University of California, San Diego. There, he holds the Irwin and Joan Jacobs Chair in Information and Computer Science. Savage is widely cited in computer security, particularly in the areas of email spam, network worms and malware propagation, distributed denial of service (DDOS) mitigation and traceback, automotive hacking and wireless security. He received his undergraduate degree at Carnegie Mellon and his Ph.D. from the University of Washington.