Configure your device to require a passcode to gain access if this feature is supported in your device.
Avoid storing sensitive information. Mobile devices have a high likelihood of being lost or stolen so you should avoid using them to store sensitive information (e.g. passwords, bank account numbers, etc.) If sensitive date is stored than encryption should be used to secure it.
Keep your mobile device’s software up-to-date. These devices are small computers running software that needs to be updated just as you would update our PC. Use the automatic update option if one is available.
Disable features not actively in use such as Bluetooth, Wi-Fi, and infrared. Set Bluetooth-enabled devices to non-discoverable when Bluetooth is enabled.
Delete all information stored on a device before the device changes ownership. Use a “hard factory reset” to permanently erase all content and settings store on the device.
“Sign out” or “Log off” when finished with an app rather than just closing it.