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4. To block or warn before installing apps that may cause
harm, touch
Verify apps
.
5. Touch
Change security level
to modify the security level
for credential files.
Security Update Service
To set security update service settings:
1. From the
Settings
screen, touch
General
tab ➔
Security
.
2. Touch
Auto update security
to automatically check for
changes to the security policy and download any
updates to improve security.
3. Touch
Via Wi-Fi only
to only update security policy
automatically when your device is connected to a Wi-Fi
network.
Credential Storage
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
Settings
screen, touch
General
tab ➔
Security
.
2. Touch
Storage type
to set a storage type for credential
contents.
3. 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.
4. Touch a CA certificate to examine its details.
A scrolling screen displays the details.
Scroll to the bottom of the details screen and touch
Turn off
to disable a System certificate.