Jack and Gabe are the best in the business at breaking into buildings and hacking security systems. As top penetration specialists, they get hired by high-profile companies to test their security vulnerabilities. But after a routine assignment goes terribly wrong, Jack returns home to a nightmare—someone brutally murdered Gabe, and the police suspect her of doing it. Determined to clear her name, Jack goes on the run to find the killer. She uncovers a connection between Gabe’s death and a dangerous zero-day exploit, a vulnerability in a popular app that could be worth millions to the wrong people. Jack must stay one step ahead of the authorities and the killers. […]