In 2011, Sony suffered breach after breach after breach — it was a very bad year for them. The breaches spanned various areas of the business ranging from the PlayStation network all the way through to the motion picture arm, Sony Pictures. A SQL Injection vulnerability in sonypictures.com lead to tens of thousands of accounts across multiple systems being exposed complete with plain text passwords.
Amount of leaked user accounts
Dates of birth, Email addresses, Genders, Names, Passwords, Phone numbers, Physical addresses, Usernames