A Waking Nova by David G. Martin

Lieutenant Fiora Nascen and Captain Hark Davron are special. Born with the ability to interface with the technology around them using an ability known as the hex-sense, they are among the elite of the Earth Sphere Government's Armed Forces. As the newly graduated Fiora must learn to control her growing abilities, Davron must teach the young hexxer that having this power comes at a cost, with greater risk to all should she not be up to the task.

As a dangerous web of secrets and lies closes in around them and their friends, threatening to destroy all they have accomplished and hold dear, Fiora and Davron have to learn to trust one another as they soon discover that the most dangerous things in the galaxy are in the very data streams they travel through.