Tumblr announced today that Two-Factor Authentication is now available for all users of the site. Two-Factor Authentication adds a second layer to the log in process on websites.
Instead of accessing an account on Tumblr with the account's username and password, another code needs to be entered before access is granted.
That code is generated in real-time, usually through smartphone apps, SMS or hardware devices that can generate codes on demand.
In the case of Tumblr, you can either use an authenticator app that runs on your smartphone or receive SMS whenever that single-use code is required to sign in on the site.
Setting it up
To set up Two-Factor Authentication, you need to do the following:
Note: Some mobile apps are not compatible with the two-factor authentication system. This means that you need to generate special mobile passwords for Tumblr's mobile applications for Android or iOS to sign in to those as well.
Next time you sign in on Tumblr you are asked for your username and password like usual, and then for a second code that you either generate in the authentication app or receive by SMS.
You can disable Two-Factor Authentication at any time. To do so, you need to be logged in on Tumblr and switch the feature on the Account settings page to off. You are asked for the account password to complete the operation.
Additional information about Tumblr's new security feature are available here.
Tumblr's Two-Factor Authentication feature improves the security of accounts that make use of it significantly. While you need a smartphone for it, it is highly recommended as you will protect your account against many attack forms.
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