First of all, "Select category" does not have "security" - option which is related to this my topic. Dropbox has several ideological and practical security issues and if security is not even a category it tells much about the ideology. Anyhow I love to use Dropbox but this one major issue bugs me:
"Remember me" on login page does not do anything. Whether it is selected or not my browser (Chrome/Win7) remembers the last session and lets me or anyone using the same PC get in. Automatic Login happens even after several days of the last usage of Dropbox on the browser. The only way around this issue is to remember to Log out, every time.
Dropbox is the only service I know which works like this and this is a very critical security issue. Even activated Two-Step-Authentication does not help and browser let anyone in.
In my opinion, if the user is so concerned about the security that Two-Step-Authentication is activated, should "Remember me" be disabled always as default and automatic Logout should take place once the browser is closed. Or just let the user select the security level.
Dropbox is the awesome system for professional and cautious users alone as a single user but this and other security issues are reasons why I would not select or recommend it for a larger team ever.