Can you disable certain attack notices?

I get regular notices of malicious IP threats (several per week) on one specific computer on our network.  This computer also happens to be a Plex Media Server so I have a suspicion that is related, but that's not relevant to my question here.

Since these are supposedly "known malicious IPs" I just want them to be blocked and not bother me about it.  Is there any way to disable these specific notifications of malicious IP attacks?  It's annoying to have to go look to see what the alert is about every time it happens, when I'm never going to do anything about it anyway.