Dropbox Denies hacker breach responsible for hours long outage

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Popular cloud storage service Dropbox went down Friday night for at least two hours due to what the company claims was an issue pertaining to internal maintenance, though one hacker group alleges to have caused the outage with a DDoS attack.

Shortly after users reported the outage at around 6 p.m. PST, a hacker group identifying themselves as The 1775 Sec tweeted that it had successfully compromised the Dropbox database. The post also linked to a supposed cache of user data uploaded to website Pastebin.com.

During the downtime, Dropbox users attempting to access the service through its web portal were automatically directed to a system status page displaying the image above. As of this writing, the webpage has been changed to reflect that "Dropbox is under maintenance" and attempts to log in are met with an Error (500) message.

When contacted by multiple media outlets, Dropbox maintained the leaked data claim was a hoax, a fact later confirmed by subsequent tweets from The 1775 Sec. The supposed hacker group later said it had used bots to carry out a distributed denial of service attack in honor of Internet prodigy and political activist Aaron Swartz, who committed suicide on Jan. 11, 2013.

At the time of his death, Swartz was facing charges for allegedly stealing over 1,000 academic journals from JSTOR through a Massachusetts Institute of Technology network. He supposedly planned to make the documents freely available to the public.

In an update to Dropbox's tech blog a around 8:30 p.m., the company announced the service was back online and once again refuted claims of leaked user data. An identical message was posted to Twitter at around the same time.