Microsoft has informed us via its Security Tech Center that there is an Urgent Update to protect your system.

From that link is the information below:

 

Microsoft Security Advisory (2718704)

Unauthorized Digital Certificates Could Allow Spoofing

 

Published: Sunday, June 03, 2012

Version: 1.0

 

General Information

Executive Summary

 

Microsoft is aware of active attacks using unauthorized digital certificates derived from a Microsoft Certificate Authority. An unauthorized certificate could be used to spoof content, perform phishing attacks, or perform man-in-the-middle attacks. This issue affects all supported releases of Microsoft Windows.

Microsoft is providing an update for all supported releases of Microsoft Windows. The update revokes the trust of the following intermediate CA certificates:

• Microsoft Enforced Licensing Intermediate PCA (2 certificates)
• Microsoft Enforced Licensing Registration Authority CA (SHA1)

Recommendation. For supported releases of Microsoft Windows, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service. For more information, see the Suggested Actions section of this advisory. For affected devices, no update is available at this time.”

 

What you need to do: Go to the Microsoft Support Center , find your system and click to download the patch. You will need to find out which Operating system you are running. To do this, right click on “my computer”, then click on “Properties”. There you should see the OS and any service packs you currently have installed. Find the same name operating system update and click on that link in the support center. You will then need to verify that your copy of Windows is Genuine. Just download, install and run the file. It will then give you a code you copy and paste into the link above. Proceed to download the patch. Run and install. You will need to then update your Windows system AFTER you do the install the patch.

Use your Start menu to check for updates

Windows Update is included in Control Panel. In the future, to check for updates (or if this webpage doesn’t open Windows Update automatically):

  Click the Start button, click All Programs, and then click Windows Update.