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

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

#9
post #8

Is it based on mail undeliverable errors? Or attempts to login using IMAP or SMTP with it? Or is it exposed during the SMTP protocol?

As someone who doesn't rely on this feature, I'd love to know now as well, but perhaps the etiquette in public would be to align ourselves with:

> we will not discuss or disclose the details of the exploits until they're fixed.

But if there's a public forum where the cat's already out of the bag, then game on. Perhaps this:

https://www.reddit.com/r/apple/comments/1ukilw1/apple_hide_m...

...which makes it seem like perhaps the attack surface is limited to scenarios involving a Yahoo/Sonic address (assuming that Apple only sends X-Sonic-* headers when talking to those providers that want to see it), which might be a small percentage of users.

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