A database of breached emails totaling 773 million unique addresses has turned up on a popular underground hacking forum, giving cybercriminals one of the largest jackpots ever seen when it comes to account-compromise efforts.
Troy Hunt was first alerted to the cache, which totals 87GB of data, after it was seen being hosted on the MEGA cloud service (it has since been removed). The data was organized into 12,000 separate files under a root folder called “Collection #1,” which gives the trove its name. Soon after that, the whole shebang turned up on the cyber-underground.
The full article, by Tara Seals, is located here.