> The mac circumvented the issue because it sends out information of all previous networks ... I'd rather not want my laptop to push out all of my recent netwo

> The mac circumvented the issue because it sends out information of all previous networks ... I'd rather not want my laptop to push out all of my recent networks' information to anybody It's some information about the last few _wired_ networks you've connected to, to any of those networks, that the owners of those networks already have. If you have a wifi you already know which network you're on, and there's no sense in asking about addresses you haven't seen with that SSID+key. There certainly appears to be a privacy issue if you're connecting to a lot of public ethernets and those sites (can) collude, however if those sites can and do work together, they can unmask you anyway. If they don't yet collude (but are willing) and you don't use random MAC addresses, then there may be another privacy issue where they can use the MAC address you leak to discover each-other, but I'm unconvinced even Google has the resources to do this.