Apple's privacy changes have cut $278 billion from 4 Big Tech firms

Social media is having a moment. In April of 2021, Apple made a big change to its privacy controls, limiting the tracking capabilities of digital advertisers and enabling iPhone users to opt-out of data sharing. It seemed clear at the time that this could fundamentally reshape digital reality, but now we're finally seeing how much all that private data was really worth.
Read more: https://interestingengineering.com/apples-privacy-cut-278-billion?source=Snapzu