It’s hard for me to assess how real this risk is. Without details, we’re just extrapolating from circumstantial vibes.

What’s described sounds like it might be spooky. It might also be a magic trick to some degree… Mr. Cox’s PoC—“I gave a fresh Hide-My-Email alias to a guy who knows who I am, and he told me the email on my Apple ID”—is consistent with the claimed behavior but not exactly watertight.

It also sounds like it might be the sort of thing that’s either “just how the email ecosystem works” or mitigable by covert means. For example, if Apple can identify exploit attempts from its privileged vantage over its infrastructure, maybe that’s the basis for its relaxed impact assessment.

I’m reminded of Amazon’s risk assessment with respect to some Quick bug recently [0]: “yeah, it’s bad, but we checked and there are literally zero people other than you who’ve ever used that feature that way.”

Or maybe it’s the kind of thing that requires a structural sort of tradeoff to conclusively fix. I could imagine the exposure mechanism having something to do with their forthcoming move to segregate aliases to their own “private.icloud.com” domain.

(A move at which Mr. Cox swipes in the 404 Media article, too, of course, but hey—“impact journalism.”)

And then, since we have only vibes to go on, there’s the judgment reflected in the researcher’s email to Apple:

> “It seems that ending new sales of Hide My Email until the problem is fixed would be an effective way to limit the number of customers at risk. Is that an option?” Murphy wrote back.

I can only hope that was a sardonic moment of frustration quoted out of context… Hide My Email is “sold” as a tiny tiny bonus feature of a much bigger iCloud+ product. But as-quoted, it’s giving a little bit of Chicken Little… I’m reminded of the time somebody demanded that a firm I’m familiar with halt all sales (and pay hush money) because of a CRITICAL SECURITY HOLE: you could access the contents of a password field by typing the password in the field, pressing F12 in the browser, and typing $(“#pw-input”).value …

If the flaw really is the sort of thing that required fundamental product changes to fully address—like this domain segregation thing—a year doesn’t seem wild at all to make that transition safely and at scale. Especially if they identified effective mitigations in the meantime.

Then again, maybe they really are negligent…

[0] https://www.theregister.com/columnists/2026/05/13/aws-patche...

Apple 'Hide My Email' vulnerability reveals peoples' real email addresses