Many customers have reported receiving an email from Microsoft regarding a critical update for Microsoft Outlook and Outlook Express, even if you do not use either of these programs.
While it may seem legitimate, one or more links in this email take you to websites that attempt to install phishing software on your computer, which is used to steal personal information such as passwords and bank account numbers.
If you get an email like this, do not click on any of the links; just delete it. Microsoft only issues updates for its software through the Windows Update service, and never contacts customers by email.
For more information, please visit:
http://blog.trendmicro.com/critical-update-leads-to-critical-info-theft/