Researcher Troy Hunt had brought attention to the largest data dump containing 12,000 files, 773m unique email addresses and 22m unique passwords. He called the database available online Collection #1. It has now been discovered that Collection #2-5 is also available online for the mere price of $45, and contains 2.2bn emails, usernames and passwords, as well as 25bn records and 845GB of data. The emails and passwords are a collection of previous leaks (Yahoo, LinkedIn, Dropbox), but can be valuable to hackers who can use them for credential stuffing, which relies on people choosing the same password for different accounts.
Source: Techradar
