Settings91SecurityChange settings for securing the device and the SIM or USIM card.On the Settings screen, tap Security.• Device administrators: View device administrators installed on the device. You can allowdevice administrators to apply new policies to the device.• Unknown sources: Set the device to allow the installation of apps from unknownsources.• Encrypt device: Set a password to encrypt data saved on the device. You must enter thepassword each time you turn on the device.Charge the battery before enabling this setting because it may take more than anhour to encrypt your data.• Encrypt external SD card: Set the device to encrypt files on a memory card.If you reset your device to the factory defaults with this setting enabled, the devicewill not be able to read your encrypted files. Disable this setting before resetting thedevice.• Remote controls: Set the device to allow control of your lost or stolen device remotelyvia the Internet. To use this feature, you must sign in to your Samsung account.• SIM change alert: Activate or deactivate the Find my mobile feature which helps locatethe device when lost or stolen.• Go to website: Access the Find my mobile website (findmymobile.samsung.com). Youcan track and control your lost or stolen device from the Find my mobile website.• Set up SIM card lock:– Lock SIM card: Activate or deactivate the PIN lock feature to require the PIN beforeusing the device.– Change SIM PIN: Change the PIN used to access SIM data.• Make passwords visible: Set the device to display passwords as they are entered.• Security policy updates: Set the device to check and download security updates.