Tsutomu Shimomura

is a Japanese-born physicist and computer security expert. He is known for helping the FBI track and arrest hacker Kevin Mitnick. Takedown, his 1996 book on the subject with journalist John Markoff, was later adapted for the screen in Track Down in 2000. Shimomura was a founder of semiconductor company Neofocal Systems, and served as CEO and CTO until 2016. Biography Born in Japan, Shimomura is the son of Osamu Shimomura, winner of the 2008 Nobel Prize in Chemistry. He grew up in Princeton, New Jersey, and attended Princeton High School. At Caltech he studied under Nobel laureate Richard Feynman. After Caltech, he went on to work at Los Alamos National Laboratory, where he continued his hands-on education in the position of staff physicist with Brosl Hasslacher and others on subjects such as lattice gas automata.