Of particular interest, if you're someone who's ditching Google services out of concern about privacy issues, is that Condoleezza Rice voiced support for warrantless wiretaps during Bush Jr's administration, and was also involved (to what degree is debatable) with the authorization to use "enhanced interrogation techniques" (aka torture). Whatever you personally think about these issues, if you're concerned about privacy, that she is in Dropbox's board of directors should be a big red flag.