Touting the success of it's new Security Development Lifecycle (SDL) process,
Microsoft late Wednesday said Windows Server 2003 and Windows XP SP2 Professional
and Embedded have secured the highest Common Criteria security certification from
the United States government's National Information Assurance Partnership.

Four versions of Windows Server 2003 were certified, including Standard Edition, Enterprise Edition,
Datacenter Edition and Windows Server 2003 Certificate Server.
Both Windows 2000 Professional and Server editions previously achieved the same
security rating, dubbed Evaluation Assurance Level (EAL) 4.

http://www.betanews.com/article/Windows_XP_Gets_Security_Certification/1134664600

Suresh Behera