Watchman is a program developed to protect your system so you feel confident and safe. It lets you get control of your data by a limiting the access to it. You can protect your files, and log in to your applications, it also protects your computer from unwanted programs. It runs silently in the background so don't worry about someone trying to view your documents, you'll receive an alert in your inbox mail if that happens. Don't worry about leaving your computer or about someone filtering your confidential information, it will get protected just by this program. Download its free version here.