Lisa Vaas reports:
We already know that if you threaten to shoot up a school on the ostensibly anonymous social media messaging platform Yik Yak, the law will come knocking, and that gossamer veil of not-really privacy will be shredded.
[…]
Now, researchers have found that Yik Yak anonymity can be erased even without a warrant or Yik Yak’s compliance with US laws that force it to turn over user information. The researchers did it by relying on publicly available location data from the app, mixed with location-spoofing and message-recording on a device outfitted with simple machine learning.
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