•Send security reports: Use
Device Administration
Manage your device administrators and application installation privileges.
1.From a Home screen, tap 
Apps > 
Settings.
2.Tap Lock screen and security > Other security settings > Device administrators.
•Tap Android Device Manager to allow it to lock or erase a lost device.
•Tap AT&T Locker to allow AT&T Locker to erase your phone’s data without warning, by performing a factory data reset.
Settings
Credential Storage
Manage your security certificates. 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, tap 
Apps > 
Settings.
2.Tap Lock screen and security > Other security settings for the following Credential storage options:
•Storage type: Select a storage location for credential contents.
•View security certificates: Display certificates in your device’s ROM and other certificates you have installed.
•User certificates: View user certificates.
•Install from device storage: Install a new certificate from storage.
•Clear credentials: Erase the credential contents from the device and reset the password.
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