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Everyone knows your location: tracking myself down through in-app ads

(timsh.org)
1957 points apokryptein | 1 comments | 02 Feb 25 17:07 UTC | HN request time: 0s | source
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theptip ◴[02 Feb 25 17:58 UTC] No.42910331[source]▶
> Why do they need to know my screen brightness, memory amount, current volume and if I'm wearing headphones?

This is clearly adding entropy to de-anonymize users between apps, rather than to add specificity to ad bids.

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xkzx ◴[03 Feb 25 16:10 UTC] No.42919652[source]▶
Screen brightness can identify weather you are outside or inside.
replies(1): >>42919879 #
1. fumblebee ◴[03 Feb 25 16:26 UTC] No.42919879[source]▶
Taken as one of a thousand attributes it's likely to provide at least some discriminatory lift in isolating a single user, even if tiny.