The big story here is that iOS and Android are *actively* providing tracking IDs for devices and sending them to anyone who asks.https://twitter.com/feross/status/920733574688624647 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Operators providing lookups is an issue in itself but seems not to be the issue here.
Oh. In this case they seem to be placing ads through Google's ad network?
Yeah and they claim a "MAID" ("mobile advertising ID") that iOS or Android provides is being sent to the ad server.
Googling "mobile advertising ID" yields lots of hits marketing this crap to advertisers, little technical info on mechanism/mitigation.
I dunno about Android but IIRC iOS has a semi-anonymized advertising IDs
IIRC they're unique per device&app combo
That's utterly non-anonymous. Which seems to be the point of the paper.
It's less bad than what was there before, which was unique per device and shared between apps...
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.