First, what appears to be the problem with Skype? One, Skype uses indiscernible encryption and can work through virtually any network address translation (NAT)-based firewall. Two, Skype is highly difficult to detect at the exit point.
Users can set up calls on dynamically changing, random port numbers using randomized communication protocols - either UDP or TCP - in varying packet sizes ranging anywhere from 115 to 190 bytes per packet. Third and the worst thing, users that install Skype can agree to become Supernodes –
(Supernode) is a communication node that other call nodes can route through. The nodes involved in call setup are obscured by a blast of traffic that occurs in the second or so that a Skype call is established.
So, how do you control Skype software installation or use? You can run daily
scans on all your PCs – which consumer precious time and resource.
SurfControl new Enterprise Threat Shield (ETS) can target and remove the Skype application when found on the company network as well as prevent its installation and use within a restricted company environment.
Enterprise Threat Shield (ETS) contains the unique signature for the Skype application which enables organizations to customize network policies to limit its use to authorized employees and only during authorized times of day.
Using ETS, you can also control the use and duration of a Skype-based call, and/or prevent Skype use altogether.
Moreover, if a user attempts to access Skype for media file sharing, you can customize ETS to deny the file transfers, providing an additional safeguard against intentional and unintentional user- created threats.
Via PRNewswire
