Researcher says PatchGuard changes helped Microsoft
Microsoft has come under fire for quietly releasing a fix to its PatchGuard kernel protection software in order to improve the performance of its Virtual Server 2005 product.
PatchGuard is a much-touted security addition to Windows Vista that restricts access to the Windows kernel, making it harder for hackers to run nasty software such as rootkits. But it has also broken some legitimate software programs, leading to complaints from software vendors including Symantec and McAfee.
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