linumax writes "Microsoft Corp. on Wednesday clinched Common Criteria security certification from the U.S. government's National Information Assurance Partnership for six versions of its flagship Windows OS. The products receiving CC certification include Windows XP Professional with Service Pack 2 and Windows XP Embedded with Service Pack 2. Four different versions of Windows Server 2003 also received certification. Common Criteria certification, which was ratified as an international standard in 1999, helps customers in key market segments evaluate IT products when making software purchase decisions and contribute to higher levels of consumer confidence in IT product security, Lipner said. SuSE Linux ES 9 has already achieved the certification and almost a year away from being released, Red Hat Enterprise Linux 5 is on the path toward EAL4 certification."