Samsung SGH-I437 User Manual Ver.li6_f3 (English(north America)) - Page 130

Note: If a device uses multiple enabled administration applications, the strictest policy is enforced. 1. From the Home screen, tap ➔ Settings ➔ 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. From the Home screen, tap ➔ Settings ➔ 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. 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 ➔ Settings ➔ 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. 4. Scroll to the bottom of the details screen and tap Disable to disable a System certificate or Remove to remove a User certificate. 123