Quite a while ago my ISP threatened to shut off my Internet as I had a port open for SSH. I suggested that they should be more concerned that they had admitted

Quite a while ago my ISP threatened to shut off my Internet as I had a port open for SSH. I suggested that they should be more concerned that they had admitted to either scanning my system without permission or snooping on my traffic. That was enough to end that. Unfortunately I don't think asserting an expectation of privacy is enough anymore.