Facebook has introduced a new system aimed to make logins easier for its users and, by extension, its ad partners. The latest developer Account Kit SDK now includes instant verification.
The system only works if you’re logged into the Android Facebook app on the same device. If so, it can verify without sending a one-time password via SMS, and if not, you’ll receive a text on your smartphone and will need to enter it on the other device.
“This feature is used only to improve the verification process in a secure way and no additional Facebook information is shared with the app”
Instant verification still relies on SMS, which does not necessary remedy the issues concerned. The alternative is custom apps that generate much more secure codes like Google’s Authenticator, or even hardware dongles that work in a similar way.