Earlier today, Motherboard reported on what had been rumoured for some time, namely that Dropbox had been hacked. Not just a little bit hacked and not in that "someone has cobbled together a list of credentials that work on Dropbox" hacked either, but proper hacked to the tune of 68 million records. Very shortly after, a supporter of Have I been pwned (HIBP) sent over the data which once unzipped, looked like this: What we've got here is two files with email address and bcrypt hashes then another two with email addresses and SHA1 hashes. It's a relatively even distribution of the two which appears to represent a transition from the weaker SHA variant to bcrypt's adaptive workload approach at some point in time. Only half the accounts get the "good" algorithm but here's the rub: the bcrypt accounts include the salt whilst the SHA1 accounts don't. It's just as well because it would be a far more trivial exercise to crack the older algorithm but without the salts, it's near impossible. At first glance the data looks legit and indeed the Motherboard article above quotes a Dropbox employee as confirming it. But I like to be sure about these things and as I've written
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