The best hacker movie?

My favorite is Sneakers, which I rewatched again tonight. Killer cast, snappy dialog, heart in the right place, and no stupid made-up GUIs. Most of what they do is "human hacking" or social engineering. If you accept the central McGuffin, most of the rest isn't too far-fetched, just exaggerated. I also liked how the heroes don't shoot their way out of trouble; they carry guns a couple of times, but fire exactly one warning shot.