pixeldetracking’s avatarpixeldetracking’s Twitter Archive—№ 7,074

  1. How far could adtech go to recognise you? Quite far actually... A little example with the ID5 company (for the pun, in french, 5 is pronounced "cinq", same as the english "sync") 🤔 From their github page github.com/id5io/id5-api.js 👀 1/
    oh my god twitter doesn’t include alt text from images in their API
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    1. …in reply to @pixeldetracking
      How does it work? ID5 will recognise you through a 'probabilistic link' (translation: fingerprint) or even better, a 'deterministic link' (matching with another identifier) 😈 2/
      oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
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      1. …in reply to @pixeldetracking
        The 'deterministic link' is interesting, the 'link' is provided by ID5 clients (aka websites) and called "Partner Data" support.id5.io/portal/en/kb/articles/passing-partner-data-to-id5#What_is_Partner_Data 🧐 3/
        oh my god twitter doesn’t include alt text from images in their API
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        1. …in reply to @pixeldetracking
          Of course, hashing personally-identifiable information make it safe to share 👍 4/
          oh my god twitter doesn’t include alt text from images in their API
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          1. …in reply to @pixeldetracking
            ID5 has multiple ways to recognise you 💩 note on emails: - 'how to cleanse the email prior to hashing' - 'A flag for whether the hashed email provided is a burner email' - 'we recommend you send ‘true’ for all icloud email addresses' 5/
            oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
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            1. …in reply to @pixeldetracking
              A recipe to create a new super identifier 👏 6/
              oh my god twitter doesn’t include alt text from images in their API
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              1. …in reply to @pixeldetracking
                Important: cleansing an email Example: [email protected] normalizes to [email protected] 😘 7/
                oh my god twitter doesn’t include alt text from images in their API
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                1. …in reply to @pixeldetracking
                  I didn't document the leaks to ID5 in this thread cause their identifier is far more complex @pixeldetracking/1602794635910340609 And ID5 is included in many websites (including french ones, due to ID5 french roots) 😱 Other adtech providers also have their own ID (Criteo...) 🤡 8/
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                  1. …in reply to @pixeldetracking
                    Little flashback @kfranasz/1512248288606572574?s=20 🤦 9/
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                    1. …in reply to @pixeldetracking
                      Protecting you from being recognised across different context? "it also poses a challenge. Many players currently rely on these signals for cross-domain and cross-device reconciliation" support.id5.io/portal/en/kb/articles/signal-obfuscation-how-publishers-can-future-proof-their-addressability-strategy#How_Publishers_Can_Future-Proof_their_Addressability_Strategy 🤮 10/
                      oh my god twitter doesn’t include alt text from images in their API
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                      1. …in reply to @pixeldetracking
                        Don't worry, ID5 got you covered, "in a privacy-first manner" 🤡 11/
                        oh my god twitter doesn’t include alt text from images in their API
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                        1. …in reply to @pixeldetracking
                          "privacy-first"... with fingerprinting 😈 12/
                          oh my god twitter doesn’t include alt text from images in their API
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                          1. …in reply to @pixeldetracking
                            Afraid of browser protections & adblockers? Use "Server-Side integration" 🙌 ..."which is less exposed to interferences rolled out by browsers and operating systems" 😈 ... "the transfer of data is more secure, achieving an even greater level of privacy protection" 🤣 13/
                            oh my god twitter doesn’t include alt text from images in their API
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                            1. …in reply to @pixeldetracking
                              By the way, what is ID5 CEO stance on fingerprinting? Well, it's interesting... Fingerprinting is not OK, except for publishers adexchanger.com/the-sell-sider/when-cookies-go-away-is-there-life-beyond-the-login/ 👌 14/
                              oh my god twitter doesn’t include alt text from images in their API
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                              1. …in reply to @pixeldetracking
                                The 'deterministic link' in practice? After registration on allocine.fr, you will see the new 'pd' (partner data) parameter sent to ID5. A basic base64 decode (emn178.github.io/online-tools/base64_decode.html) to see the hash SHA256 of your email (parameter 1, and only parameter here) 🧐 15/
                                oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
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