> IP addresses are as easy to block as domain names, but the number of IP adresses available to them is much smaller than the number of possible domain names.

> IP addresses are as easy to block as domain names, but the number of IP adresses available to them is much smaller than the number of possible domain names. Is it? If they wanted to be toxic they could mix the telemetry IPs around with the windows update IPs inside a fairly significant block of IPv6 addresses. It would be hard to block the entire range because you'd hit the update servers.