Removable mass storage is made mass more and more recently, and easiness to use improves.
However, danger of losing always shadows it to removable mass storage.
Please encrypt it by using this application."Josuijo-Dori"
Even if removable mass storage are picked up by others, the content of the file in removable mass storage is never seen.
The advantage that the person who picked up the lost removable mass storage obtains is only "New removable mass storage was obtained. ".