Apple Unifies Sign in with Apple and Hide My Email on private.icloud.com

*Apple's shift to a single domain for its privacy aliases removes the technical friction that once made broad blocks costly for services.*

Apple will move both Sign in with Apple and iCloud+ Hide My Email addresses to the private.icloud.com domain later this summer. New aliases generated for either feature will carry that domain from the start.

Existing addresses on the old domains will keep forwarding mail without change. Sign in with Apple had used privaterelay.appleid.com. Hide My Email had used the main icloud.com domain shared with ordinary iCloud Mail accounts.

What changes for developers and services

The shared icloud.com domain had forced any service that wanted to reject Hide My Email addresses to risk blocking legitimate iCloud users as well. The new subdomain removes that overlap. Services can now target private.icloud.com directly if they choose to reject the aliases.

Apple's announcement notes that both features will issue addresses on the unified domain. No other technical details about forwarding or authentication were provided.

Early reaction

Commenters on X and developer forums quickly pointed out the practical result. Blocking the new domain carries no collateral damage to regular iCloud accounts, lowering the cost for platforms that want users to supply a "real" address.

Apple has not commented on whether it considered this side effect when planning the consolidation.

Why it matters

The change favors Apple's internal simplicity over the small defensive advantage users gained from the mixed domains. Services that already disliked disposable addresses now have a clean target. Users who rely on Hide My Email for one-off sign-ups will face more consistent blocks unless they keep a secondary address ready.

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Sources:

• Daring Fireball
• MacRumors

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