Samsung GALAXY S4 Active - Verify Apps; Unknown Sources

Note: If a device uses multiple enabled administration
applications, the strictest policy is enforced.
1. Fr
om the Home screen, tap

Settings 
More  Security .
2. Tap
Device administrators .
3. Select a device administrator and follow the prompts. If
no device administrators are listed, you can download
them from the Play Store.
Unknown sources
This feature allows you to download and install non-Market
applications.
1. Fr
om the Home screen, tap

Settings 
More  Security .
2. Tap
Unknown sources .
A check mark is displayed to indicate it is active.
Warning! Enabling this option causes your phone and personal
data to be more vulnerable to attack by applications
from unknown sources.
Verify apps
This feature allows you to either block or warn you before
installing apps that may cause harm to your phone.
1. From the Home screen, tap

Settings

More  Security .
2. Tap
Verify apps .
A check mark is displayed to indicate it is active.
Change security level
This option allows you to set the security level for your
phone.
1. From the Home screen, tap

Settings

More  Security  Change security level .
2. Select
High or Normal (default).
Security policy updates
When you activate this feature, your phone will automatically
check for changes to the security policy and download any
updates to improve security and service.
1. From the Home screen, tap

Settings

More  Security .
2. Tap
Security policy updates .
Changing Your Settings 137