SurfEasy Private Web Browser Minimum System requirements: Windows 8, 7, Vista, XP, Mac OS X 10.6 or later (Requires Intel Based Mac); USB read/write permission; active Internet connection Simplest way to protect your online privacy and security on any computer or network. USB key the size of a credit card with your own personal web browser and Internet encryption. All personal browsing data (bookmarks, passwords, history, etc.) is stored on the key. Nothing left behind for others to find. Encrypts everything in and out of the browser with better than bank-grade encryption. No one can see what you do online.