Device security is an unauthorized app scanner from McAfee that comes pre-installed on many Samsung Galaxy phones that have Android 7, 8 and 9.

You cannot remove (uninstall) device security, but you can disable it.

This tutorial will show you step by step how to disable the built-in device security devices running with Android 7, 8 and 9.

Open your phone's Settings.
Samsung Settings

Open Apps.
Open Apps

Tap on the ⋮ (3 dots) options button in the top right corner of your phone's screen.
Apps Options Button

Tap on Show system apps.
Show System Apps

Scroll down to Device security and tap on it.
Device Security
You can also search for device security and tap on it when it appears.
Alternative : Search for Device Security

Tap on Storage.
Storage

Tap on the Clear data button.
Clear Data

Tap on DELETE for Android 7, 8 and OK for Android 9.
If you now open “Settings” > “Device maintenance” or “Device care” > “Device security” you will see that “Device security” is disabled (deactivated).

Video Tutorial
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