Microsoft to Modify BIOS to Make Vista More Secure
Microsoft has won agreement with PC makers to add a fundamental change at the BIOS level to improve security in Windows Vista. Manufacturers will help make the software giant's Address Space Layout Randomization (ASLR) feature an idea from the Linux and Unix world common and fully functioning on Vista PCs. It could make automated, large scale attacks significantly more difficult.
The feature relies on another new Vista security feature, Data Execution Prevention (DEP), also known as No Execute (NX), to function fully, but PC makers have the ability to disable DEP at the BIOS level—for example, because of concerns about application compatibility. Microsoft to Modify BIOS to Make Vista More Secure - Security Feed - News - CSO Magazine
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