To print this article, all you need is to be registered or login on Mondaq.com. With the launch of iOS 14.5 slated for next week, Apple's long-awaited changes to the use of its persistent identifier known as the "Identifier for Advertisers" (IDFA) have now gone into effect. While this change has been explained by Apple as a step to protect its users' privacy, it will drastically change the ability of third parties and app publishers to collect information on and track users through apps on Apple devices. Apple's Changes to IDFA As of the launch, app publishers on Apple's iOS 14.5