This morning my kid asked the voice assistant to "Turn off the computers in this house".
I heard it, thought well that's a strange request but seems harmless because how is home assistant gonna turn off computers.
Me a little while later, "why is shit broken? What's happening!"
Turns out dumb me had adguard exposed to the voice assistant, it switched off all the adguard settings including the DNS rewriting that is the cornerstone of many of my self-hosted services.
I've since revoked that access.
I have definitely done similar things. Now you mention it, I remember adding a hosts file entry for testing recently and can't remember if I removed it. I just checked my laptop and two servers and didn't find anything weird so now it's gonna bug me.