To do this, you need to scan the QR code with the smartphone camera in the desktop version and confirm the login in the mobile application. Thus, users have the ability to switch between different devices while maintaining an active session.
Thanks to authorization using QR codes, the user will also be able to enter the social network without entering a password, and will also gain access to his account if he forgot his password or connected an old phone number that is no longer used.
The QR code for authorization is posted on the Odnoklassniki account login page. When you point your smartphone’s camera at it, a hint will appear on the screen to open the app and confirm the authorization. All users who have installed an iOS or Android-based social networking mobile application can log in using a QR code.
Source: Ferra
