[Webkit-unassigned] [Bug 132588] support for navigator.cores or navigator.hardwareConcurrency

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon May 5 22:08:10 PDT 2014


--- Comment #8 from Alexey Proskuryakov <ap at webkit.org>  2014-05-05 22:08:26 PST ---
> How so? There are 8-core ARM systems which will be common in a year or two.
> There's also an 8-core Intel Atom which is low cost. 
> MacBook Air's (which are expensive) are still stuck on 4 cores.

The web page can already tell if you are on a Mac or on an iPhone, so adding the number of cores to the mix will give quite a bit of insight.

> How is this exploitable?

User's hardware will feed into one or more of the choices advertisers have on AdWords. This proposed feature is not about numeric algorithms - having each split bit of insight into who the user is significantly increases the price of ads, that's all. Yes, we are not talking about disclosing whether the user is a pregnant woman, which would reportedly make the ads 15x more valuable, but if you can achieve even a slight degree of correlation with user's income, that's money.

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