Twitter users can use a new app for iOS and Android devices to better protect their social network account from hackers and other attackers. The update features two-step verification.

When activated, Twitter sends a confirmation request to the smartphone at every login attempt on a browser or other device. The user doesn’t get access to their account until approving the request.

This new function is found under Security in Settings. A 12-digit back-up code is generated upon activation and this code should be stored in a safe place. The code is needed to access your account when you don’t have your phone.

Double verification with Twitter was previously only available via text messages.

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