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I am not here to defend Meta, only clarify how data is transmitted. Data is not salted as far as I can tell, it's normalized and hashed via SHA256. They publis
by austinpena 3y ago
I am not here to defend Meta, only clarify how data is transmitted.
Data is not salted as far as I can tell, it's normalized and hashed via SHA256. They publish SDKs for serverside integrations so you can see how the code is set up.
https://developers.facebook.com/docs/marketing-api/conversions-api/guides/business-sdk-features/ https://developers.facebook.com/docs/marketing-api/conversio...
- gcr 3y agoFacebook knows the nine billion most common human names. On my Mac, sha256() takes 288ns, so running nine billion of them to find the collision would take about 43 CPU-minutes.
- mkmk 3y agoThe whole point of sending the hash to FB is so that they can look it up against the hashes of people to whom they have served an ad.