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

Hans-Christoph Steiner hans at guardianproject.info
Wed Aug 5 04:12:11 EDT 2015

(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?


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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