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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

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    1. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted Bob Hunt

      Right, that's what I'm asking. Is it known that Facebook pixel will log IP and Facebook will allow targeting like that? I'm not asking if anyone knows this is a product on offer or known to be done? Not asking for the wildest theory. Is there an IP path?https://twitter.com/Bobhunt5/status/1263624098120433667 …

      zeynep tufekci added,

      Bob Hunt @Bobhunt5
      Replying to @zeynep
      Facebook pixel on the coffee maker website
      15 replies 9 retweets 87 likes
      Show this thread
    2. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted Robin Berjon

      Iphone (iOs), Safari, private mode. So the only thing I can imagine is the IP. Two separate machines/browsers and both browsers are not logged into anything and are in incognito/private mode.https://twitter.com/robinberjon/status/1263624507534856193 …

      zeynep tufekci added,

      Robin Berjon @robinberjon
      Replying to @robinberjon @zeynep
      (You say you looked it up on the phone but what with, browser, OS, etc.)
      9 replies 5 retweets 57 likes
      Show this thread
    3. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted Steven M. Bellovin

      Right. Cross-device tracking. Though this was immediate. Look up - > ad. So I'm wondering if this is a product they sell? They just do it to increase ad relevance (free to advertiser?)https://twitter.com/SteveBellovin/status/1263625004442320902?s=20 …

      zeynep tufekci added,

      Steven M. BellovinVerified account @SteveBellovin
      Replying to @zeynep
      Both from home WiFi? Then it's the same IP address. Trying to link devices is a major goal for companies like Facebook; see, e.g., https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/zimmeck …
      10 replies 13 retweets 73 likes
      Show this thread
    4. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted IlGnom-eh.

      No, not even once. Plus, I actually switch to brand new phones fairly often (don't ask; it's research). This phone was deliberately kept completely free of Facebook except for having WhatsApp on it. I have a single, separate device for Facebook.https://twitter.com/ilgnome/status/1263627147186405385 …

      zeynep tufekci added,

      IlGnom-eh. @ilgnome
      Replying to @zeynep
      Have you ever visited facebook website on the phone itself?
      6 replies 7 retweets 29 likes
      Show this thread
    5. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted

      That's my guess: that there is some fingerprinting going on and all my devices are linked to my Facebook account. (They use same IP regularly). Basically, no amount of privacy options or switches on the platform or separating devices protects against this. https://twitter.com/aarongraves/status/1263625691750436870 …

      zeynep tufekci added,

      This Tweet is unavailable.
      11 replies 34 retweets 173 likes
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    6. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted Wolfie Christl

      I would love to get to know if anyone has clarity/information on this? It seems like a really important thing for people to know: forget not being on Facebook, even not being on the same device is protective of tracking via cross-device tracking/IP.https://twitter.com/WolfieChristl/status/1263629657230004225 …

      zeynep tufekci added,

      Wolfie Christl @WolfieChristl
      Replying to @WolfieChristl @zeynep
      I don't have evidence, but I'm pretty sure FB pixel ingests the IP. In order to create household ID links and/or to feed it into their retargeting optimization algorithms (without advertisers having control over this). https://twitter.com/zeynep/status/1263625251260416002 …
      8 replies 17 retweets 73 likes
      Show this thread
    7. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted Robin Berjon

      I looked up one brand, got ad for another brand. 😀 It was a very very specific conversation, and I'm actually not in the market for coffee machines. And it was instant. Looked up, put phone down, turned on other machine, saw ad for other brandhttps://twitter.com/robinberjon/status/1263632775682437126 …

      zeynep tufekci added,

      Robin Berjon @robinberjon
      Replying to @robinberjon @swodinsky @zeynep
      I'm curious, did you look it up on a brand site and get an ad for another brand? Or on an ecommerce site and got an ad to buy elsewhere? Because if so that's a neat smoking gun for the harms of tracking to publishers, brands, and businesses!
      5 replies 6 retweets 37 likes
      Show this thread
    8. zeynep tufekci‏Verified account @zeynep 21 May 2020

      zeynep tufekci Retweeted

      All my searches are in incognito mode. I know it's hard to believe, but I actually research stuff like this for a living. I put everything in incognito mode and separated devices and sandboxed Facebook just so I could rule that out. https://twitter.com/adnanchcg/status/1263633265749090304 …

      zeynep tufekci added,

      This Tweet is unavailable.
      11 replies 6 retweets 80 likes
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    9. This Tweet is unavailable.
    10. Robin Berjon‏ @robinberjon 21 May 2020
      Replying to @can @zeynep

      It's hard to fully defend with an app inside the network, but in the case here it's possible to improve on Safari + guest chromebook. With stuff like Brave or a PiHole (or Tor, but there may be limits 😁) the link wouldn't have been made.

      1 reply 0 retweets 0 likes
      zeynep tufekci‏Verified account @zeynep 21 May 2020
      Replying to @robinberjon @can

      I’m first trying to figure out if it’s known/disclosed that they do this! And common route. Probably very hard to defend against for normal person

      6:32 PM - 21 May 2020
      1 reply 0 retweets 0 likes
        1. Robin Berjon‏ @robinberjon 21 May 2020
          Replying to @zeynep @can

          It's documented that they do householding and multidevice tracking. I'm not sure that how they do it is a matter of public record, they probably keep updating it to use the data they get.

          0 replies 0 retweets 0 likes
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