I’m not sure. This allows to test wether hostnames exists on your network. It’s maybe not an issue for a unique hostname but what about fixed hostnames or de

I’m not sure. This allows to test wether hostnames exists on your network. It’s maybe not an issue for a unique hostname but what about fixed hostnames or default hostnames that are common in the IoT world. This allows a website to secretly guess if you own a given device. It’s even worse used in a targeted attack : if you know some devices of the network, you can guess that the connected user is on the targeted network.