Samsung SM-T537VYKAVZW - Manual (Page 126)

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Note: If a device uses multiple enabled administration
applications, the strictest policy is enforced.
1. From a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch Device administrators, to select a device
administrator, and follow the prompts.
If no device administrators are listed, you can
download them from the Play Store.
3. Touch Unknown sources to download and install
non-Market applications.
Warning! Enabling this option causes your device and
personal data to be more vulnerable to attack by
applications from unknown sources.
4. Touch Verify apps to cause your device to either block
or warn you before installing apps that may cause
harm.
Security Update Service
To set security update service settings:
1. From a Home screen, touch Apps ➔ Settings
➔ Security.
2. Touch Security policy updates to automatically check
for changes to the security policy and download any
updates to improve security and service.
3. Touch Send security reports to send security reports
to Samsung, using Wi-Fi, for threat analysis.