Rule:--Sid:6001--Summary:This event is generated when network traffic that indicates Skype is being used.--Impact:Possible policy violation. The use of Skype may be prohibited by corporate policy in some network environments. --Detailed Information:This event indicates that the Skype is being used on the protected network.Specifically a Skype client login was observed.--Affected Systems:All systems using Skype	--Attack Scenarios:This is a possible policy violation, it may be that Skype has been installated on a client host.--Ease of Attack:Simple.--False Positives:None known.--False Negatives:None known.--Corrective Action:Disallow the use of Skype on the protected network and enforce or implement an organization wide policy on the use of Skype.--Contributors:Sourcefire Vulnerability Research TeamKevin Shivers <kevin.shivers@sourcefire.com>Nigel Houghton <nigel.houghton@sourcefire.com>--Additional References:--