The huge 'Collection #1' data breach is only a small part of much larger hacker dataset

I guess they wouldn't have numbered it if it was the only one. 

On Jan. 16, security research Troy Hunt uploaded a massive cache of leaked emails and passwords to his invaluable website have i been pwned. The 87GB dataset, dubbed "Collection #1," was admittedly years old, and had been passed around by hackers for some time now. Still, the sheer scale of it — containing over 772 million email addresses — turned heads. Hold onto your digital butts, because as Krebs on Security reports, you ain't seen nothing yet.