[LINK] Stolen Laptop [was Re: Consumer computer security]

Adam Todd link at todd.inoz.com
Mon Jan 29 02:43:19 AEDT 2007

Come on, it's simple.  If there is a performance issue, buy a new laptop 
with a faster processor.  Then the performance will be better than your old 


At 01:20 AM 29/01/2007, Johann Kruse wrote:
>On 29/01/07, Rick Welykochy <rick at praxis.com.au> wrote:
>>Johann Kruse wrote:
>> > You could upgrade to Windows Vista and use Bitlocker -
>> > http://www.microsoft.com/whdc/system/platform/hwsecurity/BitLockerFAQ.mspx
>>"Q. Will BitLocker add any performance impact to a Windows Vista machine?
>>  A. It is too early to determine performance impact on the Windows Vista
>>     operating system; however, BitLocker is expected to have a negligible
>>     affect on day-to-day PC performance."
>>Heh? AES encryption and decryption cost CPU cycles. Copying data from one
>>AES encrypted file to another will be measureably slower than the equivalent
>>non-enrypted copy. Microsoft would know this already. We Mac and Linux
>>users know this. Even if the AES functions are performed on the chip,
>>DMA to/from the chip will take extra time. Why the spin?
>Personally I notice no difference in speed between two laptops of
>pretty much identical specs, one with Bitlocker and one without.
>That said, I guess I haven't really tried proper benchmarking or
>pushing the boundaries - I pretty much tend to stick to Outlook,
>Excel, Powerpoint, IE7, and Virtual PC.

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