anyway. there are filters to up stall to take that back from them. >> will that help with the wireless, too? so for the guest coming in and connecting -- >> that's a separate thing. for the guests you want to have a guest network. >> got it. >> so employees, obviously, employees and guests need to be separated. so anything with critical files, confidential files, personal employee stuff, that should be separate from anything that accepts tablets or outside devices. >> so these filters that you can install, they have a list, those companies have a list of places that your employees shouldn't go. you don't have to tell them a list or be up-to-date on it. >> exactly, they'll do it for you. >> okay. outdated software. i think people know this but they are not doing anything about it. >> this is the biggest problem. when malware spreads, it spreads by infecting software that's not been updated and is outdated. this is the number one thing to do, keep your software up-to-date. it is an expensive process to go around and hire someone to update all the machines but it just has to be done.