> What happens when malware starts black-holing Google and Microsoft for all my devices? You will send an unblock packet. Well, maybe this protocol should only

> What happens when malware starts black-holing Google and Microsoft for all my devices? You will send an unblock packet. Well, maybe this protocol should only work for commercial IP addresses, not for residential. > this is authenticated and secured, how? By your source IP address. You can only block traffic to your own IP address.