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Comment by FireBeyond

1 year ago

The ones I've seen are like a987dfc429be@icloud.com.

Same with Private Relay: here's one of mine (with one character changed) - 2he5rs923s@privaterelay.appleid.com

You’re thinking about something else. There’s a thing called “Sign In With Apple” that is available when an app/website wants to offer it, that integrates with Apple’s authentication system. The email the app/website sees is a bunch of random characters followed by @privaterelay.appleid.com. But Sign In With Apple is not the same as Hide My Email. SIWA is for when the website opts into Apple as an auth provider.

I just looked at my alias list in iCloud and every single “hide my email” alias looks like a plausible @icloud.com address with dictionary words, and every “sign in with Apple” address is using the privaterelay address with the super random characters. There are no addresses that look like a987dfc429be@icloud.com.