Comment Put it on a disc (Score 1) 208
Put all of your files on a CD/DVD and mail it to them, with an explanation of what the files are. That way, the data's off-line until they need it and safe unless somebody breaks in who knows what to look for. And, if your friend's good at hiding things, it may still be safe. (As an example, put the disc in a DVD or Blu-ray case behind another one with a movie on it.)