Microsoft has identified a new Internet Explorer (IE) exploit that affects IE6 through IE11, and just released
a critical security update to address the vulnerability.
Here’s the link to Microsoft’s Critical Update: https://technet.microsoft.com/library/security/ms14-021.
As of April 8th 2014, support and security updates for Windows XP are no longer available from Microsoft.
Don't let your PC go unprotected, upgrade to a newer version of Windows ASAP!
See the Microsoft bulletin here: http://windows.microsoft.com/en-us/windows/end-support-help