The original CM Security upgraded to the ???? Security Master – Antivirus, VPN, AppLock, Booster (by CM, Cheetah Mobile) and redefined the scope of Phone Security: protects not only your phone but also your privacy. Security Master introduced Intelligent Diagnosis to detect your phone status, including Antivirus, Junk Clean, and Phone Booster (Battery Saver, and CPU Cooler) in time. With our upgraded Safeconnect VPN & proxy you can also unblock all your favorite websites whenever and wherever you want. All the necessary features to keep your phone safe & healthy.