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Setting up Trusted Phone Numbers under Two-Factor Verification

We are new to smart phones, and this is our first ... two IPhone 12 Pros. I am trying to set up the two-factor authentication and trusted phone numbers.


Here is my problem and question ... the instructions say that "Your trusted devices and phone numbers are used to verify your identity when signing in." We understand that. It also says "Trusted phone numbers are used to verify your identity when signing in and help recover your account if you forget your password. We understand that.


What we envision being on our OWN phones, but possibly forgetting our Apple ID password ... it ism nt that often requested. Our question about trusted phone numbers is ... is the first one listed on the phone the one sent a code? We would like to have our OWN phones be sent the code, as we may not be with the other person, or they may not have their phone with them. BUT, we cannot have the phone list our own phone as the trusted phone number ... it keeps shuffling our own number to second or third place. I have deleted and reentered them, but it continues to do the same.


I understand that, if the phone is stolen, we might not want the code sent to the stolen phone. But, that seems much mote unlikely than forgetting the password when trying to sign onto the App Store.


So, IS THERE A WAY TO HAVE YOUR OWN PHONE NUMBER LITED FIRST IN ORDER OF TRUSTED NUMBERS? OR, IF IT DOES NOT MAKE A DIFFERENCE WHICH ORDER, HOW CAN WE GET THE CODE TO THE PHONE WE ARE HOLDING AND USING?


I WOULD APPRECIATE THE ADVICE.

Posted on Sep 6, 2021 8:13 AM

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5 replies

Sep 6, 2021 9:23 AM in response to Chattanoogan

Last to add. Your iPhone’s passcode is THE KEY that makes the whole system secure. (It also encrypts all “at rest” data on your iPhone and all iMessages)


If someone knows your iPhone’s passcode … they have “free license” w/ your account.


Protect and don’t share your iPhone’s passcode.


Set your screen’s auto-lock to a short period (3 minutes so). [Settings -> Display & Brigtness]


If someone wants to borrow your phone, unlock it BEFORE handing it to them.



Sep 6, 2021 8:53 AM in response to lmendol

First off:


Your iPhone will be considered a “trusted device”


As such it will ALWAYS receive a 2FA code via special iMessaging (NOT SMS) when attempting to access your AppleID account from a “non-trusted” device.


A “trusted device” should NOT also be listed as a trusted number.


Next:


Trusted numbers are IN-ADDITION to your trusted devices. They are where you can receive 2FA codes if you don’t have access to any of your trusted devices.


Trusted phone numbers normally “don’t” receive 2FA codes, but if you are logging-in to your AppleID from a non-trusted device; your list of trusted numbers are presented in a drop-down from which you select.


These can be your “disaster recovery” numbers; when you’ve lost access to ALL of your trusted devices. (e.g. Fire, flood, storm, etc.)


Note that these “trusted numbers” can be SMS or to “voice only” phone numbers.


Most importantly: You ABSOLUTELY MUST commit to memory your AppleID and it’s password. Be able to accurately regurgitate it from memory when under stress but DON’T SHARE IT WITH ANYONE.


You will need them BOTH to locate - and if necessary disable - your lost or stolen iPhone.


You also MUST remember your iPhone passcode … but it makes you enter it fairly regularly so it’s harder to “forget.”

Sep 6, 2021 9:21 AM in response to lmendol

Re: “… WHY the phone should NEVER be listed as a trusted number? …”


Good question, one never knows exactly how much info a thief might “have on you.”


Even with your AppleID username AND password, a thief can’t get into your account w/o the 2FA code.


By simply pulling the SIM out of your phone … and installing it in theirs … they can receive YOUR “trusted number” code via SMS.


“SIM-Swap” fraud is another very real risk of receiving 2FA codes via SMS.


There are other means to mitigate these risks (e.g. SIM PIN, eSIM, … ) but the most straightforward method seems to be to never send SMS 2FA codes to your “theft-prone” phone to begin-with.


Restated: “Trusted Device” codes STILL come to your phone via special, secured, iMessaging … however SMS codes become a non-option.

Setting up Trusted Phone Numbers under Two-Factor Verification

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