Few weeks back some Dropbox users found that their accounts hacked and their username and password stolen from other websites were used to sign in Dropbox, Dropbox promised adding 2-step verification to secure and improve safely Dropbox users account due to security concerns. Now they commitment has been achieved by adding optional two-step verification for all Dropbox accounts.
However, 2-step verification is still beta status which you need download beta build to enable this feature.
Download the beta client from the link above and installed, please make sure the install software client upgrade to latest version (1.5.12).
Enable Dropbox 2-Step Verification
Then visit this 2 step verification link where you may need to login your account, you will notice Dropbox has enabled 2-step verification feature.
Scroll down the page till notice change 2-step verification, click on it.
You will be presented following steps how to enable 2-step verification.
Here i would like use text message to receive security code.
Enter mobile phone number.
A pop up windows will appear after enter security code that receive by your mobile phone. This emergency back up code please keep it safe as you need to disable 2-step verification or lost your phone, now click on 「Enable 2-step verification」 icon to enable this function.
From now on as new PCs or mobile devices try to login your Dropbox account then you mobile phone will receive security code, without enter this security code even if already enter correct password still can’t access to the account, this is most secure way to secure Dropbox.
Disable 2-Step Verification
Visit same page and click on change 2-step verification, enter account password to disable this feature.
If you are suspect someone access your Dropbox account, then go to 「Security」 tab > 「My Devices」, inspect all the device connect to your Dropbox account. Click on 「Unlink」 to kick off all the devices then enable 2-step verification to have most secure and privacy storage.
Remarks: Dropbox 2-step verification final released today (28/8/2012).