How to activate the built-in antivirus on a Samsung phone
This tutorial will show you step by step how to activate the built-in antivirus on a Samsung phone.
The steps on this page work for all Samsung phones with Android 7, 8, 9, 10, and 11.
Device security is a malware (virus) scanner from McAfee that comes pre-installed on many Samsung smartphones that have Android 7, 8, 9, 10, and 11.
How to activate the built-in antivirus on a Samsung phone
1. Open your phone's settings.

2. Open Device maintenance or Device care or Battery and device care.

3. Tap on Device security or Security or Device protection.

4. Tap on Activate or Turn on.

The antivirus is now activated.
Related:
How to disable device security on a Samsung phone