Apple finally explains its Safari block, and identity companies are in its sights

A month after Apple started cutting off companies that follow people around the web in its Safari browser to target them with ads, the company has finally explained itself. The engineers behind the browser laid it out in a blog post on Monday (October 19). When someone types their email address into a website, to log in or sign up for a newsletter, a company working with that site can receive it and convert it into an ID. That ID lets advertisers recognize the same person across different sites without using cookies. Apple wants that stopped. LiveRamp, ID5 and The Trade Desk’s UID 2.0 all work this way so there’s little doubt now about who…

This is a curated summary. The full story was reported by Digiday.