Dropbox Hack in 2012 Targeted Over 60 Million Accounts

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After Dropbox forced a password reset on any user who hadn't changed their login credentials since mid-2012 -- due to a hack faced by the company that year -- new information has surfaced recently detailing the extent of the user data leak.

According to a collection of files obtained by Motherboard, containing the email addresses and hashed passwords of the affected user base, a total of 68,680,741 Dropbox accounts were successfully targeted during the 2012 hack. When Dropbox announced it was going through with the preventative password reset measure last week, the company didn't give any hint as to the extent of the users touched by the four-year-old hack.

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The "incident," as Dropbox refers to it, was a data breach in the summer of 2012 where a few users began reporting spam sent to email addresses connected to a Dropbox account. Due to a password hack connected to other websites, hackers were able to sign in to "a small number" of Dropbox accounts, including an employee's who had access to a document listing an array of user email addresses.

Dropbox is confident its message to users last week has covered "all potentially impacted users," and the company is encouraging users to still reset passwords on other services that have the same login information, particularly passwords, previously used for Dropbox.

“We've confirmed that the proactive password reset we completed last week covered all potentially impacted users," said Patrick Heim, Head of Trust and Security for Dropbox. "We initiated this reset as a precautionary measure, so that the old passwords from prior to mid-2012 can’t be used to improperly access Dropbox accounts. We still encourage users to reset passwords on other services if they suspect they may have reused their Dropbox password.”

As Motherboard discovered, nearly 32 million of the affected accounts were secured with the strong hashing function bcrypt, "meaning it is unlikely that hackers will be able to obtain many of the users' actual passwords." The other half of the passwords had a slightly less secure SHA-1 aging algorithm and were salted with a random string of characters to further strengthen them. Since 2012, Dropbox has changed up this password and account hashing process several times in attempt to make sure every user remains secure.

Motherboard confirmed that none of the four files, which total 5GB of collected user login data, appear to be anywhere on the dark web. Also, given Dropbox's aggressive measures taken in the past week, their value will continue to "diminish" over time.

Tag: Dropbox

Top Rated Comments

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53 months ago
Anybody that thinks online storage will ever be secure is nuts in my mind. Eventually every service will fall to hacking. If you have important dats either encrypt it or keep it off line.
Score: 3 Votes (Like | Disagree)
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53 months ago
What the heck was a Dropbox employee doing with a file containing the login details for 68 million Dropbox users?
Score: 3 Votes (Like | Disagree)
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53 months ago

Can someone tell me where I can find "the Dark Web"?

If you have to ask...
Score: 1 Votes (Like | Disagree)
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53 months ago
I haven't yet to date received any spam that was associated with this hack - at least that I know of. I get a few spam emails now and then, but the junk filter gets them. As for the data I stored in Dropbox, it was all protected inside an encrypted container I made so even if my stuff was taken, there wasn't any way anyone could get to it.
Score: 1 Votes (Like | Disagree)
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53 months ago

What the heck was a Dropbox employee doing with a file containing the login details for 68 million Dropbox users?

Selling it.

Seriously though, I was wondering that exact same thing. I've had access at various companies to download login details, but I've never done that, because why would I?

I feel like the biggest vulnerability at every company that has any user credentials is always a rouge employee.

Anyways - I changed the email account that was connected to my Dropbox account in 2014... does that immediately mean I don't need to worry about anything? (I originally signed up using my college email address, but when I graduated, I stopped using that address and also changed everything that I had previously associated with it another address.)
Score: 1 Votes (Like | Disagree)
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53 months ago

Sweet. I received three notices. Thank God I had forgotten I tried it. There's something to say about parking your data at companies who do not even tell you the truth when a fallout happens. Bye Dropbox.

It is human nature to try to cover issues, regardless of scale, before anyone knows it. This Applies on individual, company, and to a greater extent, nations.

If the leak of user data only affects 68 users, not 68m users, we would not even see any media reporting this 68 users data leak.
Score: 1 Votes (Like | Disagree)

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