That solution, according to Federighi, is Sign in with Apple, which he says will limit the amountof private information apps can get from people using its iOS and macOS devices. Although sitesand apps will still be able to request your email address, Sign in with Apple will give you theoption to hide it. And here's the kicker: If you do decide not to share that information, Apple willgenerate a unique, random email address that can forward messages from those services directlyto your main inbox. This is going to keep sites and apps from knowing your real email address,and Apple says it won't use its sign-in tool to track any of your internet activity -- which thecompany says is what Google and Facebook can do with their login buttons.Ray Walsh, data privacy expert atProPrivacy.com:"The concept of being able to sign in withoutusing a real email address is a step in the right direction for consumers. Being able to sign inwithout sharing a real email address removes one crucial bit of data from those services' hands.However, web services still get to collect other crucial data from users when they visit their sites-- which can still be used to track them. When you visit a website, that service automaticallyreceives your IP address; this is an extremely valuable tracking tool. Thus, Sign in with Apple isonly removing one small piece of trackable data from the equation."