Continuity: When Ozzie uses the computer in Shady Glen's computer room, the scene is reused from the start of the film. (When he's "hacking" the website.)
Factual errors: There are no graphical interfaces on web sites that allow users to hack.
Audio/visual unsynchronized: When Bentley grabs the bug from Foster, he yells, "What the hell is this? Foster!" When it shows his face, and he is supposed to be saying, " - the hell is this?" he is just saying, "Foster!"
Continuity: Bentley's guards are repeated; in other words, the same guard is in more than one place at once.
Crew or equipment visible: When Ozzie is skateboarding through the basement toward the electrical box, a crew member is seen to the right slowly crouching out of the way.