The information stored on your phone is valuable, take these steps to help protect it: Back up your data regularly, either with a backup application or by manually syncing the device with a computer. Do not save passwords or PINs as contacts on your phone or tablet. Enable device encryption to protect personal data stored on the device where possible. Check the privacy permissions carefully when installing new apps on your device and only install apps from reputable vendors. Where you can, make apps or profiles private and password-protected. Learn more about protecting yourself from mobile malware. Ensure you thoroughly remove personal data from the device before selling or recycling it.