Set up SIM card lock
You can set up a PIN to lock your SIM card, which prevents unauthorized use of your SIM card if
someone attempts to use it in another device. Options may vary by service provider.
From Settings, tap Security and privacy > Other security settings > Set up SIM card lock
and follow the prompts.
Tap Lock SIM card to turn on the feature.
Tap Change SIM card PIN to create a new PIN.
View passwords
You can have characters displayed briefly in password fields as you type them.
From Settings, tap Security and privacy > Other security settings > Make passwords
visible to turn on the feature.
Device administration
You can authorize security features and apps to have administrative access to your device.
Security and privacy > Other security settings > Device admin apps.
Tap an option to turn it on as a device administrator.
Credential storage
You can manage the trusted security certificates installed on your device, which verify the
identity of servers for secure connections.
From Settings, tap Security and privacy > Other security settings for the following
options:
View security certificates: Display the certificates on your device.
User certificates: View user certificates that identify your device.
a new certificate from storage.
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