Don't Trust Anyone

Don't trust anyone, especially when it comes to your memory card, usb drives, hard disk or any storage device. Even though you already reformat your storage devices or a virus deleted all your files or you intentionally deleted a file, there are still ways to recover all of that. Me too, I can recover some of your deleted files. So if you know that you have something private in your storage drive, even though you deleted it already, don't give it away to anybody, unless you trusted him/her a lot...