How do I password protect a specific folder. I have my dropbox synced to my pc and I would like additional security on a single folder with private information, if my PC is hacked, or my account is accessed. Dropbox used to have this functionality by creating an encrypted "vault"; now my "vault" just reverted to a regular folder. I upgraded for the premium version with all functionality so I could add back this function, but I can't seem to figure it out, it only shows how to password protect a shared folder from other users, but when I search for how to encrypt a specific folder within my own dropbox account with additional security, it just send me to promotional websites.