[cap-talk] Decisions about risk
david.nospam.hopwood at blueyonder.co.uk
Fri Jan 19 20:31:58 CST 2007
David Hopwood wrote:
> Jonathan S. Shapiro wrote:
>>This type of problem is why the notion of TCO (Total Cost of Ownership)
>>was introduced. We need to introduce a similar concept.
>>And because of the arbitrage factor, we *may* find that the TCO of the
>>administrator install actually *is* cheaper on average -- simply because
>>many vulnerable machines will not get hit. Maybe talk about TCS (Total
>>Cost of Security) vs. TCO.
> This argument might have been used to justify continued use ..., when the
> proportion of ... was less than a ... Currently, the proportion
> of Windows PCs with malware installed is just over 60%, if you believe the ...
> (it isn't entirely clear what constitutes "malware" here, but this survey
> is by Microsoft, who have no incentive to exaggerate the problem).
Oops, that paragraph got out before it was finished. It should say:
This argument might have been used to justify continued use of Windows,
for example, when the proportion of PCs infected with malware was much
lower a few years ago. Currently, the proportion of Windows PCs with
a "backdoor Trojan" installed is just over 60%, if you believe the survey
(by Microsoft, who have no incentive to exaggerate the problem) at:
(This survey was widely reported in the technical press, e.g. at
if you don't feel like executing some random Word document.)
David Hopwood <david.nospam.hopwood at blueyonder.co.uk>
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