At my work, there is a wireless network that is on the same subnet as the servers, printers and user machines. This wireless network allows users to have access to shared network drives as if the users were on the LAN. The wireless network is given out to guests that come to the company for any period of time.
What type of impact can this have on the company's IT? I already know the security aspect, as anyone can bring in their infected laptop and connect to the environment then from there it could spread to the servers as they are all on the same subnet. What other impacts can this cause?
Can someone not on the domain get the wireless access and get access to the network drives or access the server itself? If so how would they go about doing this?