As the biggest known hack of all time seems to be a violation and leakage of Yahoo's accounts, as exposed accounts were discovered to be about 3 billion.
Η Yahoo, which was acquired this year by Verizon, now believes that the total number of accounts that were violated in August of 2013, and revealed last December, was not 1 billion, but it's 3 twice !!!! And so this particular hack is the biggest in the history of the internet.
Late last year, Yahoo revealed that it had suffered a massive data breach in August 2013 that affected 1 billion user accounts. The leaked information included names, email addresses, phone numbers, dates of birth, passwords, and in some cases, "encrypted or unencrypted encryption security questions and answers".
At that time, Yahoo had confirmed that hackers did not collect bank details or credit card details linked to Yahoo accounts.
But on Tuesday Verizon made the deal following announcement"After the acquisition of Yahoo by Verizon, and during the completion of the processes, the company recently received new data and now believes, after research and with the help of outside experts, that all accounts of Yahoo users were affected by theft of August 2013 ".
The statement clearly shows that if you had a Yahoo account on 2013, then your data has definitely been violated.
So, for whatever reason, if you haven't changed your password since then, you should change it now immediately and enable auditing ID cardtwo-factor authentication (2FA).
Also, if you use the answers to security questions, change them immediately. You mean that if you use these passwords or security responses in other non-Yahoo accounts, the best thing to do is make immediate changes.
Η deletion του Yahoo λογαριασμού σας δεν είναι μια καλή επιλογή, καθώς η εταιρεία διαγράφει τους λογαριασμούς αυτούς μετά από 30 ημέρες, γεγονός που επιτρέπει στον hacker to invade. So, even if you don't want to use your Yahoo account, just enable 2-factor authentication and leave it at that.
Yahoo has begun the notification of affected account holders by asking them to change their codes directly, and assuring them that stolen data "does not include passwords in plain text, card numbers, or bank accounts."
It should be noted that this violation is different from violation of 2014 which happened again in Yahoo, which was revealed in September last year, affecting as much as 500 million user accounts.
