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Steven M. Bellovin, a professor in the department of computer science at Columbia University, has played an active role in securing the Internet. He has received the Usenix Lifetime Achievement Award and the NIST/NSA National Computer Systems Security Award. He is a member of the National Academy of Engineering and of the Cybersecurity Hall of Fame, and has served as Chief Technologist of the Federal Trade Commission and as Security Area director for the Internet Engineering Task Force. He is co-author of Firewalls and Internet Security, now in its second edition (Addison-Wesley, 2003).