About getting brute force attacks

I started getting those brute force warnings from the app two days ago, and the history shows those warnings even when my computer had shut down. I’m not a person that knows any technical knowledge at all but I would like to know how to stop this from happening. ps. I would like to post images of the history but don’t know how to post them

https://forum.avast.com/index.php?topic=235069.0