Ruthless.Com (Tom Clancy's Power Plays, Book 2) by Tom Clancy

Encryption technology keeps the codes for the world's security and communication systems top secret. Deregulating this state-of-the-art technology for export could put a back-door key in the pockets of spies and terrorists around the world. So when American businessman Roger Gordian refuses to put his sophisticated encryption program on the market, he finds his company the object of a corporate takeover--and to say it's hostile doesn't even come close. Only Gordian stands between the nation's military software and political extremists who want to put the leadership of the free world out of business--for good...