Zero Days

Jack Cross and her husband Gabe are penetration testers, hired to break into companies and expose the holes in their security. After a routine job, Jack comes home to find Gabe murdered, and the police quickly decide she is the one responsible.

On the run, she has to uncover who killed him and why, while working out who she can still trust. Gabe had reportedly found a valuable software vulnerability, and someone wants it.

Ruth Ware's cat-and-mouse techno-thriller, published in 2023, follows a woman who knows exactly how to get into locked systems and now has to use those skills to clear her name.