In an official response to ZD Net, Microsoft warns XP users not to use this hack because it may break functionality and will not ensure full protection. The software giant urges XP users to upgrade to Windows 7 or Windows 8.1.
[UPDATE:] Late Monday we received a statement from a Microsoft spokesperson:
We recently became aware of a hack that purportedly aims to provide security updates to Windows XP customers. The security updates that could be installed are intended for Windows Embedded and Windows Server 2003 customers and do not fully protect Windows XP customers. Windows XP customers also run a significant risk of functionality issues with their machines if they install these updates, as they are not tested against Windows XP. The best way for Windows XP customers to protect their systems is to upgrade to a more modern operating system, like Windows 7 or Windows 8.1.