Raptor 6
(Book)

Captain Dean Watters keeps his mission and his team in the forefront of his laser-like focus. So when these two things are threatened by hackers, Dean's Special Forces training kicks into high gear. Failing to stop the hackers from stealing national security secrets from the military's secure computers and networks isn't an option. Zahrah Zarrick is a missionary teacher to Afghan children in Mazar-e Sharif. And a target. When Zahrah is captured because of her expertise in quantum cryptology, endangering the US national security, Dean is forced to crack the lockbox around his heart--a move that might come at the highest cost.