Enabling it typically involves adding a mobile phone number to your account.

If you want to enable it, you’ll have to do it from within the mobile app.

If you want to enable two-factor authentication, you have to do it entirely through the app.

Google

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There is currently no option to enable it via the Tumble mobile app.

To enable two-factor authentication, you’ll have to sign in to your account from a web web app.

JetPack hasinstructions on how to get startedwith installing and using the plugin.

The Facebook Security and Login page with the Two-Factor Authentication Edit button highlighted

Twitter two-factor authentication settings

Linkedin Security settings page with Two-step verification highlighted

Instagram settings with the steps needed to enable two-factor authentication highlighted

Using snapchat

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Dropbox settings with the two-factor authentication option highlighted

The Evernote home screen displayed on a laptop computer and a mobile device.

Evernote

The Wordpress plugins page