Samsung SM-S890LZKATFN - Manual (Page 374)

Unknown Sources
Before you can download a web application you must enable the
Unknown sources feature (enables downloading). Developers can
use this option to install non-Play Store applications.
1. From the main Settings page, tap More tab ➔ Security.
2. Tap Unknown sources to active this feature.
Verify Apps
Allows you to block or warn yourself before installing apps that can
cause harm.
1. From the main Settings page, tap More tab ➔ Security.
2. Tap Verify apps to active this feature.
Note: Enabling this feature can prevent installation of some
applications from the Play Store.
Security Update Service
These options allow you to configure the way in which the device
checks for changes in available security policies and the method
used for the update.
1. From the main Settings page, tap More tab ➔ Security.
2. Tap Security policy updates to automatically check for changes
to the security policy and then download any updates
automatically in order to improve security and service.
3. Tap Send security reports to only send security reports to
Samsung once the device is connected to an active Wi-Fi
network.
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