On 20th Sep 2016 Yahoo announced that two years ago the account information of at least 500 Million users was stolen by hackers, that was the biggest intrusion of the company's Computer Network.
The user information which was stolen includes - User Names, email addresses, telephone numbers, date of birth, encrypted passwords and security questions. Yahoo did not mentioned the country name which has involved. The company discovered the hack two years after the intrusion has occurred. Yahoo is one of the busiest site with approx. one billion monthly users. Yahoo mail is one of the oldest free email services which many users has built their digital identities with it - from bank accounts, photo albums and even medical information.
Changing Yahoo passwords will be just start for many users, but they should also have to comb through other services to make sure passwords used on those sites are not too similar to what they were using on Yahoo.
