On the same Make & Model system that's an Off the Shelf bog standard Home system?

Even the best Random Number Generators are not really all that Random so with the bulk of the Consumer Systems bought as an Appliance from the different OEM Vendors the Key is very likely to be repeated quite often.

Might be different in a Work Environment with Static Addressing or something along those lines but with the multitude of Domestic units being connected to Domestic Internet from a limited number of ISP's there is going to be a lot of very similar Encryption Keys used by this type of attack.

What I mean is lots of Computer Model whatever connected to the same Modem supplied by their ISP as most ISP's only have 1 or 2 Modem Types there would be a lot of duplication of data when the system searches for the associated Hardware wouldn't there?

I'm just wondering how it gets Encrypted in the first place though wouldn't that process be what any AV company would be blocking? Not the Payload but the process.

Col