10+ year adtech veteran here. This article is nonsense, written by someone without any industry experience. Facebook has billions of users on several different apps. And people log into these apps to use them. FB, Instagram, Whatsapp. Cross-app tracking is not a big deal, they already know who you are. The big hits are going to be a reduction in data collected by other apps fed to Facebook, and in measurement and att…
I only log into Facebook to tighten the privacy settings (I probably should just delete it, but they obviously had already built a large shadow profile for me before I created my account; presumably they’d keep doing that after I deleted it.) They gather tons of my information from third parties, often through data sharing deals. For instance, when I bought a car, the manufacturer somehow linked it to my Facebook acc…
This change only stops easy syncing of a profile based on a stable device-level identifier, often used in (semi-)anonymous situations (like app install ads). It doesn't mean companies can't share data ever again.