s using <a href="https://developer.apple.com/documentation/security/ksecattraccessibleafterfirstunlockthisdeviceonly">kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly</a> to <a href="https://github.com/twilio/twilio-verify-ios/blob/main/TwilioVerifySDK/TwilioSecurity/Sources/Keychain/KeychainQuery.swift#L63">save factors and keypairs</a>. According to Apple, </p>

<blockquote>
<p>Items with this attribute do not migrate to a new device. Thus, after restoring from a backup of a different device, these items 