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I had a discussion about high-end coffee machines and looked one up on phone (not buying one!). Only FB app on phone is WhatsApp. Went on computer (guest mode on chromebook) to Facebok and I saw the very very very first high-end coffee maker ad in my life. Any plausible path?
I had been logged on my Facebook on the second computer. I literally have a Chromebook whose key purpose is for me to log on to Facebook in guest mode. (Part of my experiment in tracing these things). That computer has none of my accounts logged in. None. https://twitter.com/soupkitchen/status/1263623319946842113
I know some will think it's the microphone but that's implausible (only FB app on phone is Whatsapp and I think we'd know) and also really burdensome (they are going to transcribe conversations?) and also why, why, why? Illegal, big risk, not necessary. https://twitter.com/proteantimes/status/1263623698520477697?s=20
I normally tell people exactly that, but I systematically look at every Facebook ad I get and make note of any new category. Absolutely the first high-end coffee maker ad I have seen on Facebook ever in my life in at least last decade of being on Facebook. https://twitter.com/sextoyspolitics/status/1263624187534405633
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
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
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
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
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
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
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 brand https://twitter.com/robinberjon/status/1263632775682437126
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 brand https://twitter.com/robinberjon/status/1263632775682437126
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
I know! I research this stuff for a living. Iâm asking a very specific question. https://twitter.com/amb567/status/1263638538186350593
Facebook aside, Twitter should give every woman an extra 240 characters per tweet to say I research all this for a living and I know all the basic obvious stuff. This makes Twitter unusableâmy mentions get overwhelmed by kindergarten level âexplainingâ. https://twitter.com/topquark/status/126364086562236416 https://twitter.com/topquark/status/1263640865622364161
The most likely explanation is tracking by IP/Wifi. The speed with which it happened suggests some sort of automatic retargeting. I would like to know if this is something they disclose somewhere, or if this is known to advertisers or others? Thatâs my core question.
