Carey Nachenberg is a senior software engineer at Symantec Corporation. He researches, designs, and develops new antivirus technologies for the award-winning Norton Antivirus line of products. Mr. Nachenberg has worked at Symantec for five years as a software engineer and architect on Norton Commander, Norton Desktop for DOS, and Norton Antivirus. He holds B.S. and M.S. degrees in Computer Science and Engineering from the University of California at Los Angeles. His master's thesis covers the topic of polymorphic computer virus detection.