Sneakers (1992)

This is a solid movie. Martin Bishop (Robert Redford) manages a team of four other ex-criminals whose computer skills are used to discover vulnerabilities in security systems. They are hired by two NSA agents to spy on a Russian professor and find out what he is building. The team plans to sneak into an office building and steal the black box. Martin convinces his ex-girlfriend Liz (Mary McDonnell) to go on a date with an employee so she can record his voice and use it to gain access into the building. The man becomes suspicious of her actions on the date and drives back to his office to find out what is happening.