Zero Control by Trina Lane

Keiji Pacheo knows there is something very wrong with one of the smart weapons his company has fast-tracked for production. Something has to be done to protect millions of people from being targeted. But apparently, he is the only one willing. He needs help or artificial intelligence is going to run amok and destroy the world!
Sergeant Major Rick Davis thought it was going to be just another day at work, but he quickly finds himself defending his professional integrity, fleeing from the NSA, and racing around the world with a crazy, but seriously hot, software engineer. He never expected a cyber defense gig for the US Army to turn into a real-life action movie. Therefore, it’s only logical to ask just what IT gods he’s pissed off.
Together Rick and Keiji have to figure out who they can trust to help them navigate the unexpectedly dangerous world of cyberwarfare. Along the way they discover there is nothing so simple as hitting reset or flipping off the power when the problems spread to other military systems. Keiji has to rely on Rick’s skills to keep them alive, and Rick needs Keiji to stop the first set of smart weapons ready to deploy. Can they really make a difference when it seems like the whole world is against them?