That was most likely where his network connection would be.

Note there is no information about the quality of his network connection.

For this to happen there must be a network connection.

Your computer has a network connection to access the internet.

Many users won't even be using their network connection at any given time.

The software would run until she closed the network connection.

So there is only a network connection and no hard drive to crash?

And, worse, he could use our network connections to attack other computers.

The access point's function is to share a network connection among several devices.

Network connection is part of the initial setup and very simple you don't have to go looking for it.