It's one of the biggest security breaches of the past that has exposed millions of users.
January 18, 2019
These cares grip users after the historical filtering of emails and passwords: more than 12,000 files with 2,700 million entries have been identified, including them An extensive list of passwords and emails that were violated.
For more precision, There are 772,904,991 email address es and 21,222,975 filtered passwords. This extensive collection of information that was christened # Collection 1, comes from the service, in the cloud, Mega (now those files are no longer there).
Cybersecurity expert Troy Hunt explains on his site that he came to this data because he contacted him that they were being shared in a popular hacker forum. Apparently, this comes from leaks from multiple databases and sites, according to the Infobae site.
To find out if your email and password are included in this list, you can enter here, As the expert suggests.
It is possible that the user's data is in the list because, for example, it is registered in a site. Therefore, this site was hacked and so were the combinations of mail and passwords that were leaked.
If one was affected by this incident, you must, as a first step, change the passwords into all your accounts. It should be noted that modifying passwords is fundamental and the same combinations should not be repeated in all accounts.
Then, it is advisable to activate the double authentication factor. This is something that should always be done, with all accounts, because it prevents (or hides) that accounts are violated.