Sneakers (1992)

Thriller set in the world of computer hacking. An unorthodox team of hi-tech experts is hired to test the security systems of major companies, and is forced by two government agents to steal a computer code-breaking 'black box', developed by a top mathematician for the Russian government. However, after completing the task, they realise that they have been tricked, and face an even tougher task - stealing the box back.