Verify Apps; Trusted Credentials; Unknown Sources - Samsung Galaxy S4 User Manual

Note: If a device uses multiple enabled administration
applications, the strictest policy is enforced.
1. From the Home screen, tap
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 applications
from sources other than Play Store.
1. From the Home screen, tap
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.
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➔ Settings ➔
➔ Settings ➔

Verify apps

Block or warn before installing apps that may cause harm.
1. From the Home screen, tap
More ➔ Security.
2. Tap Verify apps.
A check mark is displayed to indicate it is active.

Trusted Credentials

If a certificate authority (CA) certificate gets compromised or
for some other reason you do not trust it, you can disable or
remove it.
1. From the Home screen, tap
More ➔ Security.
2. Tap Trusted credentials.
The trusted credentials screen has two tabs:
• System: Displays CA certificates that are permanently
installed in the ROM of your device.
• User: Displays any CA certificates that you installed, for
example, in the process of installing a client certificate.
3. Tap a CA certificate to examine its details.
A scrolling screen displays the details.
➔ Settings ➔
➔ Settings ➔