Apple is Fully Blocking Safari's Third-Party Cookies
Just a few days ago, Apple announced that it will fully block all third-party cookies in Safari by default. Additionally—all part of Apple’s continuous ITP strategy— they’re tightening the ropes on any attempts to sidestep tracking prevention. Therefore, it is clear that digital advertising and tracking-based attribution & measurement is going to suffer more than ever on all Safari traffic.
Read more about this announcement here: https://www.adexchanger.com/online-advertising/apples-safari-cut-off-all-workarounds-for-cross-site-tracking-now-what/