serious omission here yall.
When Dade is hacking OTV he call the security desk and asks for the modem number, the Guard gives him THE WRONG NUMBER on the modem it says 212-555-4220 but the guard tells him 212-555-4240. therefore he couldn't have gotten into OTV would have never met acid burn and the movie would have never happened. Potentially saving the world from potential ecological disaster cause by their discovery of the worm.