Here is how the trick was executed (In 6 Simple Steps):-
Step 1: The Four Horsemen befriended Arthur Tressler a businessman who was too proud of himself to understand their wickedness. He also understood everything the way the Four Horsemen wanted him to.
Step 2: By accompanying him for a long time, they came to know a lot of personal facts about him. For instance, consider the plane scene, where Arthur unconsciously provided them with his personal facts.
Step 3: My best guess is hacking was not at all needed by The Four Horsemen. We all know if somebody looses his password, system asks the owner to provide with answers to some preset security questions which are not hard-to-know facts for close persons with the owner. Similar thing happened here. They furnished all the necessary information that has been storing in the Four Horsemens' database for a long time, asked by the system and possibly they changed or retrieved the password of his account. All this thing was done according to me just before the show started so that Arthur does not get any chance to know about this burglary.
Step 4: The Four Horsemen did not know about the true identity of Rhodes; so they arranged to stop him after the revelation beforehand, so that they can get the chance to flee.
Step 5: They shackled Arthur when he realized The Four Horsemen went berserk.
Step 6: They knew about the tracked device all alone. It was just a simple trick, they managed to misguide Rhodes during the chase.
Personally, I think this plan was never that hard to understand, so producers did not put effort to clarify it since the whole process can be easily imagined by the spectators. This is the best we can make out from the hints left in the movie.