The FBI believes that a single hacker managed to obtain 1,2 billion internet accounts. His name; Mr Grey. The accounts acquired by the hacker are said to be from social networks such as Facebook and Twitter.
According to Wired, these accounts are likely to have been stolen last year by a Russian team called CyberVor.
Data has been collected from 420.000 websites with a technique that uses botnets that look for SQL injection vulnerabilities. The same technique was used to attack TalkTalk.
Hold Security: the biggest data leak in history
The disclosure was made last year in August by the company Hold Security, which then told reporters that Russian hackers had their hands on 1,2 billion credentials, as well as half billion email addresses post officeU.
In a subsequent investigation, the FBI identified a hacker known as "mr grey" or "mistergrey" according to documents published by Reuters.
Searching for mr gray revealed spam-email tools, as well as posts in a Russian hacking forum, which offer lists of accounts from users of Facebook, Twitter and VK, a Russian social network.
Right now mr gray is being searched by the FBI, and is believed to be living in Russia.
