Re: Physical proximity not needed
"Imagine a row of houses with compromised WiFi keys where one of them contains a device that is part of a botnet."
ONLY if the device itself has WiFi capabilities. If they're on a landline, they wouldn't have the capability to see the other networks. That reduces the potential victims and makes a remote exploit difficult since you'd have to query any given bot to see if it has WiFi capabilities AND is near a vulnerable spot. Not to mention since most WiFi-capable devices can only latch onto ONE network at a time, you run the risk of cutting the bot off the net because at best it'll get a new IP and you'll have to reconnect and at worst it fails and gets cut off completely.