Over this past weekend, cloud storage company Dropbox delivered on its recent promise of bolstering its security measures, by rolling out the beta edition of a two-step authentication system which will help lend additional security to the users' accounts.

The move comes within weeks of a security breach which essentially had the users' emails linked to spam lists. Following the users' reports about the breach, Dropbox had made some security changes and had also promised that it would strengthen its security measures.

With Dropbox now having added the two-step verification process for reinforcing users' security, the "experimental feature" necessitates that the users who are logged-in should visit an opt-in URL, in order to have the two-factor authentication option switched on in the security panel of their accounts.

Since there are no hardware tokens for the two-factor authentication system, users can even enter the number of their mobile phones so that codes are sent to them through SMS each time they attempt to log-in. Another alternative option available to the users is to use an app for retrieving tokens.

With the two-step verification process implying that Dropbox users will require two proofs of identity for gaining access to their account, the company said that, once the process is enabled, users will need a six-digit security code as well as their password whenever they sign in to Dropbox or link a new computer, phone, or tablet; and described the process as an optional but "highly recommended security feature."