Samsung GT-P7310MAEXAR - Manual (Page 200)

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Passwords
When enabled, password characters display briefly as you
touch them while entering passwords.
1. From a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch Make passwords visible to enable or disable brief
displays of password characters.
When enabled, a check mark appears in the check
box.
Device Administration
To add or remove device administrators:
1. From a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch Device administrators.
Enable or disable installation of non-Google Play
applications.
1. From a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch Unknown sources.
An informational pop-up displays.
3. Read the message and touch OK to allow installation of
non-Google Play applications.
When enabled, a check mark appears in the check
box.
Warning! Enabling this option causes your tablet and personal
data to be more vulnerable to attack by applications
from unknown sources.
Credential Storage
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 a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch 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.