Why is my keychain shared to unregistered device belonging to someone else?

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Why is my keychain shared to unregistered device belonging to someone else?

I logged into a friend’s iPad and iTunes with my Apple ID about a year ago to use my iTunes account so we could watch a movie that I had paid for. I logged out again and logged them back in, but for some reason my password keychain and saved credit cards were shared to their iPad and iPhone. I never used or authorised their iPhone. Their iPad and iPhone didn’t/don’t appear as registered devices in my Apple account. They have just upgraded their iPhone to iPhone 10 and just showed me that all my keychain login options and passwords have somehow migrated to their new iPhone too. I only logged into their iPad once about a year ago but it seems that they now have permanent access to my keychain. None of their devices appear on my Apple account, but they can use my keychain to access my Facebook account and FB Messenger among other things. All my credit cards etc are available for autofill on their iPhone too (not too much of an issue as they don’t have my CVV’s, but still...). This is a real concern to me as I can’t figure out how to remove my keychain from their devices, or understand how my keychain ended up transferred to a new iPhone I have never even physically touched or logged into in the first place. If anyone can tell me how to remove my keychain from someone else’s phone I would appreciate it. For what it’s worth my friend lives on the other side of the country, so I don’t have physical access to the phone in question.

iPhone 8

Posted on Jan 19, 2020 2:55 PM

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Answer 1

Teddy_B

Community Specialist

Jan 22, 2020 9:32 AM in response to Geronimo204

Hello, Geronimo204.

Thank you for using Apple Support Communities.

From what I've read, your iCloud Keychain details are on your friend's iPhone. I'd like to help. When you signed in with your Apple ID on his iPhone it's possible that your iCloud Keychain was synced: Set up iCloud Keychain That would be the only way this information would be on other devices. I would suggest checking and making sure your Apple ID isn't logged in on any devices: View and remove your associated devices in iTunes

If your Apple ID isn't signed in on any devices other that your own, then your data is already synced and you can't do anything on your end. You'll have to have your friend reset their iCloud Keychain information to remove all data.

To resolve this issue, follow the steps in this article: If you enter your iCloud Security Code incorrectly too many times If your Apple ID is still signed in with one of his devices, you can use this same link to reset your iCloud Keychain.

That being said how well do you trust your friend? Given that they have access to your information, you may want to consider changing your passwords: Change your Apple ID password

Best regards.

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Why is my keychain shared to unregistered device belonging to someone else?

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