Skype with Facebook integration seemed pretty awesome at the time of its release, but according to an an advisory posted by David Vieira-Kurzon on secalert.net, Skype 5.5 for Windows contains few security flaws which makes it possible to hijack a Skype Session and even compromise a user’s system.
David also insisted that this issue should be fixed as soon as possible. According to ZDNet, a person can exploit your system even if he is not in your Facebook or Skype contact list.
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As yet, there is no word either from Facebook or Skype over this critical issue.