A naive young prodigy creates a program that can undo the security of every computer in the nation and finds himself in a struggle that could lead to a worldwide economic collapse and nuclear war
Malcolm Cook MacPherson was an American national and foreign correspondent for Newsweek magazine and the author of numerous fiction and nonfiction books.
Found this at an antique store (copyright 1981), and was curious what a techno-thriller from thenish would be like. Not so tech-y, it turns out, and not particularly good tech-y when it tried. Storyline was fine enough, though with some additional ridiculousness toward the end.