2fa/new device question

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undersc0re__ Author

Level 1

4 points

2fa/new device question

if 2fa is active on an apple id, will it be used when trying to connect a new device to the same apple id?

iPhone XS Max

Posted on Oct 10, 2021 6:49 PM

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Answer 1

Top-ranking reply

Chattanoogan

Level 7

25,652 points

Oct 10, 2021 7:17 PM in response to undersc0re__

All Apple “trusted devices” on the same AppleID receive the 2FA secure messaging pop-up simultaneously “broadcast style.”

Any additional “trusted numbers” (aka backup numbers) receive the unsecured 2FA SMS message (or voice call) only when individually selected from the login screen drop-down.

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Answer 2

undersc0re__ Author

Level 1

4 points

Oct 20, 2021 5:43 PM in response to Chattanoogan

Is the phone number of the apple id's device(s) considered a "trusted number"? If so, what's stopping someone who had access to the account before 2fa was added from just selecting the SMS options and getting in that way, since they would technically still have access to the phone number.

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Answer 3

muguy

Level 10

82,363 points

Oct 10, 2021 6:50 PM in response to undersc0re__

yes

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Answer 4

undersc0re__ Author

Level 1

4 points

Oct 10, 2021 7:08 PM in response to muguy

where would the 2fa confirmation be then? would it be on any/all of the other devices or just one?

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Answer 5

Eric Root

Level 10

684,609 points

Oct 20, 2021 5:48 PM in response to undersc0re__

It is the devices that are trusted. How can they have access to the phone number that a trusted device uses? You have to have access to the trusted device that has the phone number.

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Answer 6

undersc0re__ Author

Level 1

4 points

Oct 20, 2021 5:54 PM in response to Eric Root

dont all devices with the same apple id use the same phone number?

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Answer 7

muguy

Level 10

82,363 points

Oct 20, 2021 5:55 PM in response to undersc0re__

No.

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Answer 8

undersc0re__ Author

Level 1

4 points

Oct 20, 2021 6:14 PM in response to muguy

i swear my old iphone under my apple id account has the same phone number. i got all the data from my old iphone transferred to a newer one, which i currently use now, maybe thats why?

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Answer 9

muguy

Level 10

82,363 points

Oct 20, 2021 6:15 PM in response to undersc0re__

It was your phone. Probably had the same number. That's pretty typical.

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Answer 10

undersc0re__ Author

Level 1

4 points

Oct 20, 2021 6:33 PM in response to muguy

i don't know how the transferring went down, but it was originally my mothers phone. im assuming it was just wiped clean and then all my data was transferred to it.

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