Dropbox has a b lwa taversie of his client put online that offers support for two step authentication. If this is enabled, users have an sms-controlled or via an app generated code to enter when logging in.
The beta version is on the forum of Dropbox offered to users and is available for Windows, Mac OS X and Linux. Dropbox puts on a page in its Help Center on how the option should be configured. After installation of the new beta to users through the website of Dropbox to indicate that they are two-step-authentication and want to use. When the enable is also a backup code will be generated that users can access their account if they for any reason not vertificatiecode can receive or generate.
Dropbox announced the support for two-step-authentication at the end of July, after it was known that on accounts of different users was logged in with data that a hack on another website gathered. One of those accounts belonged to a Dropbox employee, who in his Dropbox a file, containing e-mail addresses of an unknown number of users. The company suspects that this list is used for spam emails to send.