Samsung SPH-M830 User Manual Ver.lh1_f4 (English(north America)) - Page 66

Unknown Sources, Credential Storage, Trusted Credentials - rom

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Ⅲ Automatically locking the device. Ⅲ Restoring factory settings. Note: If a device uses multiple enabled administration applications, the strictest policy is enforced. 1. Press and tap > Settings > Security > Device administrators. 2. Select a device administrator and follow the prompts. If no device administrators are listed, download one or more from the Play Store. Unknown Sources This feature allows you to download and install non-Market applications. ᮣ Press and tap Unknown sources. > Settings > Security > WARNING: Enabling this option makes your phone and personal data more vulnerable to attack by applications from unknown sources. 52 2C. Settings Credential Storage ⎯ Trusted Credentials If a certificate authority (CA) certificate gets compromised or for some other reason becomes unstable, you can disable or remove it. 1. Press and tap Trusted credentials. > Settings > Security > Two tabs display: Ⅲ System: Displays CA certificates that are permanently installed in the ROM of your device. Ⅲ User: Displays any CA certificates that were installed, for example, in the process of installing a client certificate. 2. Tap a CA certificate to examine its details. 3. Scroll to the bottom of the details screen and tap Disable to disable a System certificate or Remove to remove a User certificate. Caution!: When you disable a system CA certificate, the Disable button changes to Enable, so you can enable the certificate again, if necessary. When you remove a user-installed CA certificate, it is permanently deleted and must be re-installed, if needed.

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52
2C. Settings
³
Automatically locking the device.
³
Restoring factory settings.
1.
Press
and tap
> Settings > Security >
Device administrators
.
2.
Select a device administrator and follow the
prompts. If no device administrators are listed,
download one or more from the Play Store.
Unknown Sources
This feature allows you to download and install
non-Market applications.
²
Press
and tap
> Settings > Security >
Unknown sources
.
Credential Storage
⎯
Trusted Credentials
If a certificate authority (CA) certificate gets
compromised or for some other reason becomes
unstable, you can disable or remove it.
1.
Press
and tap
> Settings > Security >
Trusted credentials
.
Two tabs display:
³
System
: Displays CA certificates that are
permanently installed in the ROM of your device.
³
User
: Displays any CA certificates that were
installed, for example, in the process of installing
a client certificate.
2.
Tap a CA certificate to examine its details.
3.
Scroll to the bottom of the details screen and tap
Disable
to disable a System certificate or Remove
to remove a User certificate.
Note:
If a device uses multiple enabled administration
applications, the strictest policy is enforced.
WARNING:
Enabling this option makes your phone and
personal data more vulnerable to attack by
applications from unknown sources.
Caution!:
When you disable a system CA certificate, the
Disable button changes to Enable, so you can
enable the certificate again, if necessary. When
you remove a user-installed CA certificate, it is
permanently deleted and must be re-installed, if
needed.