EFF

@EFF ↗

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Last Checked May 26, 2022

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Fri May 06 23:09:30 +0000 2022

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EFF @EFF

Older materials about SafeGraph also indicate that it used to offer a product called “Movement Panel.” A 2017 blog post by two people from Safegraph describes it as a “database of ultra-accurate GPS-location data that comes from anonymized mobile devices.” https://t.co/XPxCEM5X63 — PolitiTweet.org

Posted May 6, 2022

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EFF @EFF

But SafeGraph absolutely has sold individualized data in the past. Last year, EFF reported how SafeGraph had sold 2 years worth of “disaggregated, device-specific” location data about millions of people to the Illinois government, starting in January 2019. https://t.co/gMtow3L8DF https://t.co/CQ6XXgYTOM — PolitiTweet.org

Posted May 6, 2022

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EFF @EFF

It also describes how SafeGraph used “the bidstream” - data siphoned from the millions of apps that solicit ads through real-time bidding. Use of bidstream data is considered ethically dubious even within marketing circles. https://t.co/p1tbcdNsKO — PolitiTweet.org

Posted May 6, 2022