There are breaches, and there are megabreaches, and there’s Equifax. But a newly revealed trove of leaked data tops them all for sheer volume: 772,904,991 million unique email addresses, over 21 million unique passwords, all recently posted to a hacking forum.
The data set was first reported by security researcher Troy Hunt, who maintains Have I Been Pwned, a way to search whether your own email or password has been compromised by a breach at any point. (Trick question: It has.) The so-called Collection #1 is the largest breach in Hunt’s menagerie, and it’s not particularly close.
If anything, the above numbers belie the real volume of the breach, as they reflect Hunt’s effort to clean up the data set to account for duplicates and to strip out unusable bits. In raw form, it comprises 2.7 billion rows of email addresses and passwords, including over a billion unique combinations of email addresses and passwords.
The trove appeared briefly on MEGA, the cloud service, [...]