[Fatnino]

My parents home lan got caught up in a bot net and their isp was sending emails about it to their isp provided email address.

But it's possible they were just passing on abuse reports from the numerous targeted victims of this botnet who bothered to complain.

The intrusion point was a Linux system with a 3 letter password and ssh exposed on a nonstandard port. So if you're someone who still thinks the bad guys won't find your computer because you changed the port, know that that is very outdated thinking.

[SoftTalker]

I don't even know how to log in to my ISP provided email., so it goes without saying that I'm not reading it. I'm surpised that ISPs still offer email.