Digital Horizon — Sherry D. Ficklin

Reeling from the death of her father, Farris is on the verge of losing everything. When an unexpected offer lands her a summer internship inside a secret government think tank filled with hackers, she leaps at the opportunity to get some answers. Someone has done the unthinkable, penetrating a hack-proof system and stealing vital military intel--which may have lead to her father's death.

Finding those responsible will mean teaming up with old enemies, trusting strangers with secrets of their own, and sacrificing what little happiness she's managed to cling to, all in the name of revenge. But when the trail leads her deep into the dark web and a hacker capable of launching an attack on US soil, Farris and her team will have to go further than they thought possible to bring him to justice and avoid all out war.