According to some articles I have read lately, the program known as Firesheep may be battling a recently designed counterpart to its spying capabilities. When i first heard of the defending program, I was uncertain as to its success at repelling the intrusive actions of Firesheep users. However, from the information I have gathered, it appears that this Firesheep blocker has indeed provided protection against the program. This programs name - BlackSheep. Since Firesheep is a Firefox plugin, meaning it can only be used in conjunction with Firefox, BlackSheep serves as a Firefox extension which can be enabled to both detect and defend against Firesheep users. Under BlackSheep, the cookie, which Firesheep attempts to capture in order to spy into accounts, is faked. The victimized user is then alerted that Firesheep is being used by another party and the IP address of the offending party is also displayed.
As far as I can tell, the program is highly useful to guard against Firesheep users; both programs cannot be used in the same session of Firefox, but one would imagine that if BlackSheep was enabled, Firesheep wouldn't be. Even though Firefox is taking steps to limit the use of Firesheep (it can only be used under specific older versions of Firefox), I still believe that downloading BlackSheep would be the best action for most users who want their accounts and privacy protected to a better extent. An article which speaks to the usefulness of the BlackSheep extension is below as well.
http://techcrunch.com/2010/11/08/firesheep-blacksheep/
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