Saunders gives Almeida an IP address that starts with 257. No IP-address can include a number larger than 255. This is equivalent to the fake telephone numbers used in movies (the 555- prefix used for numbers in the USA, for instance).
When Jack and Chase have surrounded the building where Steven is, a guy in a white t-shirt is visible in on of the top windows of the building, walking around a few seconds before Jack takes up the megaphone to talk to Steven. Why isn't he secured?