Via Reuters –

An anonymous party has allegedly hacked 6,937,081 Dropbox accounts and gained access to email addresses and passwords in plain text. Hundreds of account emails and passwords have been posted online as proof, with whoever is responsible claiming that more will be shared after receiving Bitcoin donations.

Update via Cult of Mac: A Dropbox spokesperson has confirmed that its service has not been hacked and that the exposed logins were mostly expired and harvested from third-party services.

And yet Dropbox is advising all users to change their passwords! And enable two step authentication login!