NETGEAR routers usually have a default password of password and a default IP address of either 192.168.1.1 or 192.168.0.1. However, as the table below shows, there are plenty of exceptions.

Netgear says the vulnerability is "serious" but affects fewer than 5,000 devices. Mr Giron found that the Domain Name System (DNS) settings on his router had been changed to a suspicious IP address.