Macworld on enabling 2 Step Authentication for DropBox

Macworld has an article on enabling 2 step verification via either text messages or via the Google Authenticator App on iOS.

I wish more places would implement this, but I have it for GMAIL, Lastpass, and now DropBox. It means not only do you need to put in your password, but a code that changes ever 30 seconds, from your iPhone. Much more secure than just a password.