Still Waters by Mila Crawford

Rafa: I trusted no one besides my brothers, and for them, I would risk it all. I spent my days hidden behind the keyboard, a white hat hacker who consulted for the FBI. When my hitman brother gets an assignment to protect another famous hacker, I can’t help but get involved. Little did I know, the girl who cracks code like she was born to do it, might also be the one to break the chains around my heart.

Tatum: Rafa Connor thinks he’s the best hack in the world. But if we’re stuck together in a remote cabin for days, I might as well show him I can dance circles around him in the virtual world. But when repercussions hit hard in real time, Rafa ends up saving my life. I never thought another hacker could outsmart me, but this intense man might just hold the key to my heart.