Facebook has announced that it is making it easier for your to verify you Android smartphone and the way people login.
The company had come up with an instant verification feature that is designed to streamline the process of login in and also to rely less on SMS.
Instant verification is the result of trying to streamline the login process and rely less on SMS for those signing in with their phone number. When a person enters his/her phone number into an app using Account Kit, via Android services, we attempt a match with the verified phone number listed on the person’s Facebook profile. This is only possible if the person is logged into the Facebook app on the same device. If there is a match, we can complete the verification without sending a one-time password (OTP) via SMS, making the sign-in flow more seamless. If there isn’t a successful match, a SMS will be sent with a verification code to complete the sign-in. This feature is used only to improve the verification process in a secure way and no additional Facebook information is shared with the app.
You can find out more information about the changes that Facebook is making and also the new instant verification at the link below.
Source Facebook