[guardian-dev] How your phone's battery life can be used to invade your privacy

[Amogh Pradeep]

Yes, its an api which works on laptops as well. I haven't personally tested
tor browser, but the paper mentions that there was a discussion about the
api back in 2012. They must have disabled it then, because I didn't make
any changes to OrFox to achieve it.
Even with noscripts disabled for the test site, it responds with api not
available, same way it does for the location api. I guess they've disabled
it at the gecko engine level.
On Aug 5, 2015 1:42 PM, "Hans-Christoph Steiner" <hans at guardianproject.info>
wrote:

>
> (keeping the list CC'ed)
>
> So is the battery API also something on laptops?  Does Tor Browser also
> disable this API?  Or is this just a Fennec/Firefox Mobile thing?
>
> .hc
>
> Amogh Pradeep:
> > Yup, its really fascinating.
> > Checked this with OrFox and the battery api is disabled, and no scripts
> > disables it again!
> >
> > On Aug 5, 2015 1:03 PM, "Hans-Christoph Steiner" <
> hans at guardianproject.info>
> > wrote:
> >
> >> Wow, it seems that HTML5 provides endless sources of unique IDs. This
> time
> >> it is battery levels.
> >>
> >> http://gu.com/p/4b7kq
> >>
> >> .hc
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>
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