Dropbox breach seemingly caused by egregious authentication failure [U]

Multiple Dropbox users have been emailed by the cloud storage company to advise them that a security breach saw unauthorised access to their account. Update: the company has said that about 5,000 accounts were compromised, with files downloaded from around 1,500 of them. The root cause appears to be a lack of authentication by Dropbox when attackers created a single sign-on option through a third-party company … more…