Yahoo has released a security update for yahoo messenger 8.1 version for windows. You may recieve a prompt to install this latest security update. When you are prompted to do so, click on update now button to install it

Yahoo! recently identified a security issue, commonly referred to as a buffer overflow in an ActiveX control. This control is part of the Yahoo! Messenger audio conferencing code.

You must upgrade to newer version if

  1. You installed your yahoo messenger before 13th march, 2007
  2. You are experiencing some problems in logging in or logging out of the messenger
  3. You get involuntarily logged out of the yahoo chat or IM session.