how to turn off 2 factor authentication on IPhone7
how to turn off 2 factor authentication on IPhone7
iPhone 7, iOS 15
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See this Apple article: Get a verification code and sign in with two-factor authentication
https://support.apple.com/en-us/HT204974
If you already use two-factor authentication, you can no longer turn it off. Certain features in the latest versions of iOS and macOS require this extra level of security, which is designed to protect your information.