Yesterday the Dropbox service was down and the group of hackers claimed the attack done by them, but later the Dropbox team confirmed that the service as well as the website was experiencing issues due to the internal maintenance schedule.
The team behind @1775Sec claimed that it managed to attack the Dropbox and revealed some email IDs and usernames, but later today, a security researcher Wesley Mcgrew pointed that the leaked information was taken from the pastebin posted on December 9th.
However, the known Anonymous Twitter account has officially denied their involvement with the Dropbox attack and mocked the @1775Sec for false news provided to the media and Anonymous in the name of fallen internet activist, Aaron Swartz.
“Dropbox site is back up. In regards to claims of “leaked user information” – this is a hoax. This is not Dropbox data. The list was published 12/9/13 at: http://pastebin.com/64PAAV1c. Today’s outage was caused during internal maintenance, and was not caused by external factors. We apologize for any inconvenience.”