Microsoft reacts to kernel hacks, updates Vista's defenses
Microsoft Corp. quietly beefed up a key defensive feature of 64-bit Windows Vista yesterday to better protect the operating system against hacks that have plagued it for weeks.
The update to Vista's Kernel Patch Protection, a.k.a. PatchGuard, was issued through Windows Update as a high-priority download, but not as a patch per se. Microsoft, in fact, denied that it was a security fix.
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