The Spartacus File by Lawrence Watt-Evans and Carl Parlagreco - Paperback Science Fiction

Casper Beech is a corporate drone. One day his boss sends him in for neural imprinting but a computer glitch loads the wrong file, and Casper is programmed with something that has nothing to do with his job. Instead of learning a new software package, he learns a new way of thinking — a mindset designed by a secret government agency for use in enemy nations, and never meant to be unleashed in the United States. Lethal government agents seek to correct the error in a steadily-escalating conflict, while Casper struggles to survive and to find out just what was in the Spartacus File.