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Matt Cagle Profile picture
Matt Cagle
@Matt_Cagle
Technology & Civil Liberties Attorney @ACLU_NorCal. These tweets are my views. mcagle at https://t.co/bWijHa6XJF.
Feb 7, 2020 • 9 tweets • 3 min read
Clearview AI built its facial recognition system by exploiting your “publicly available” social media profile photos.

They were able to do this because most social media companies make profile photos public by default and deprive users of the option to hide them. Thread: On Facebook, "your current profile picture and cover photo are public, so they can be seen by anyone on or off Facebook." There's no setting to change this. Facebook won’t let you protect yourself. facebook.com/help/193629617…
Jan 18, 2019 • 9 tweets • 4 min read
Today the ACLU sued the FBI, DHS, and five other federal agencies to learn more about how they monitor social media users and speech. But local law enforcement agencies have been very active in this space too. (Thread) We have already seen how local police spy on social media users. In 2016, we discovered records showing this practice was widespread here in California. medium.com/@ACLU_NorCal/p…
May 22, 2018 • 17 tweets • 5 min read
THREAD: ACLU-obtained docs reveal that Amazon is helping govts deploy its dangerous new facial recognition technology. Today 40 civil rights orgs are demanding Amazon prohibit govts from using this service, called Rekognition. 1/ aclunc.org/rekognition-an… What is Rekognition? An AI-powered surveillance software capable of identifying people in photos and film in real-time against databases with tens of millions of face photos. It's being pitched as a way to track people, and it’s open to developers. 2/
Apr 25, 2018 • 13 tweets • 7 min read
Tonight Oakland moves one step closer to passing the strongest surveillance technology ordinance in the nation. A quick thread on why @ACLU_Norcal loves Oakland’s ordinance (and you should too:). oakland.legistar.com/View.ashx?M=A&… @ACLU_NorCal Oakland’s ordinance is future-proof & covers a broad array of surveillance technologies, including social media monitoring, facial recognition, predictive policing and other AI-assisted software.