Hacker Queen Saved the CEO

Gabriella and Lawrence spend one night together by accident, and after that neither of them can get clear of the other. Lawrence runs a company. Gabriella is a white-hat hacker, known online by a handle she uses for hunting criminals, and she has just been fired from her job because her ex-boyfriend Stefan set her up. Her old firm turns out to be the one Lawrence's company is competing against, and Stefan is on the other side. When Lawrence's company is about to lose, Gabriella steps in and does the technical work herself, wins the contest for him, and leaves Stefan embarrassed in front of both companies. He keeps coming after her. One of Lawrence's larger shareholders also starts making trouble inside the company, and Gabriella ends up handling those crises as well.