You should never send an expert to a movie about his specialty. Boxers hate boxing movies. Space buffs said 'Apollo 13' showed the wrong side of the moon. The British believe Mel Gibson's scholarship was faulty in 'Braveheart' merely because some of the key characters hadn't been born at the time of the story. 'Hackers' is, I have no doubt, deeply dubious in the computer science department. While it is no doubt true that in real life no hacker could do what the characters in this movie do, it is no doubt equally true that what hackers can do would not make a very entertaining movie.