Apple extends two-factor authentication to FaceTime and iMessage
Apple recently extended its two-step verification protections to two more services. The SMS-based security measure now covers FaceTime and iMessage in addition to iCloud and your Apple ID, as first reported by The Guardian.
The new security measure means that if you have two-step verification enabled, the next time you try to login to iMessage or FaceTime on a new device you will have to supply a code sent to your smartphone via text message in addition to logging in with your password. Apple’s version of two-factor authentication does not work with authenticator smartphone apps.