The corporate computer system Abby has to break into only asks for a 4 digit password. Most corporate or even public computer systems ask users to create a password from 8 to 16 characters long, specifically to keep hackers out.
RFID chips are not GPS capable. The type of RFID chip that is implanted in animals only contain a serial number. This number is used identify the animal in a database. You cannot use GPS to locate RFID chips.
Abby is trying to access a hidden file that the CEO created on a company computer using the CEO's password in his office. But the computer tells her that she doesn't have administrator access to the file. If the CEO created the file and she entered the correct password (which she did), she should not have been blocked from accessing the file.