Samsung SM-S975LZKATFN - Manual (Page 392)

Device Administration
Activating this feature allows Google to administrate your phone in a
way similar to IT security settings on a corporate PC. This would be
beneficial in the case that your phone was lost or stolen. The phone
could be “deactivated” or “restricted” (through administration) from
a remote location.
1. From the main Settings page, tap More tab ➔ Security.
2. Tap Device administrators to begin configuring this setting.
3. Select an administrator device and follow the prompts.
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.
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