Content loaded to the data loader is pre defined with 4 different layers of security...including a pre encryption....and one half of a breach scheme....the files with those layers are then broadcast to the players....where the files are then pushed into a hard disk encryption scheme through a time sensitive automated module at the player....if someone walks off with a player....they`ve got to figure out and hack 7 to 9 layers.
The best time to up date would be when the cabin is vacant of public passengers...eliminating what ever risk they might bring...the only ones at that point able to get the files at the first 5 layers during broadcast will be the handlers.
doni