How to get notification if the internet disconnected at home

Hi all
New here
Using ring from almost 3years
Was robbery at one of my friends and we were discussing how secure the ring devices are. He asked me a simple question that if the internet cable been cut fom out how do we know ?
If anyone knows about this please spread word

When your Alarm base station notifies you that it has gone to a cell phone connection.
If you don’t have an Alarm then, no, there’s no notification via Ring.