17. The Republic of Turkey. Number of records compromised: 50 million
Date reported: 01/12/15 How it happened: A coordinated hacking assault on government networks
Government departments in Turkey are a common target for cyber attacks. This started in 2011 when the Anonymous hacktivist collective took issue with its web surveillance and censorship laws.
However, few attacks have been as successful as a 2015 raid that saw hacker steal the identification numbers of over 50 million citizens from various state agency servers.
16. Ubisoft. Number of records compromised: 58 million
Date reported: 07/02/13 How it happened: Hackers broke into parts of the company website
Games company Ubisoft suffered a particularly nasty data breach in 2013 that saw criminals expose roughy 58 million customers usernames, email addresses and encrypted passwords. The attackers got access the data by hacking the company’s website.
12. Facebook. Number of records compromised: 80 million
Date reported: 07/16/08 How it happened: A bungled test for a new website design
Facebook has done a lot of good work improving its security over the last couple of years, taking key steps like encrypting its users’ news feeds.
However, it’s important to remember the company is very young and during its rise to fame had more than a few technical foul ups. One of the biggest occurred in 2008 when a Facebook software glitch publicly exposed 80,000,000 users' hidden information.
11. JPMorgan Chase. Number of records compromised: 83 million
Date reported: 08/27/14 How it happened: A cyber attack of unknown origin
JPMorgan suffered massive data breach in 2014 when hackers used an unknown method to steal information from 76 million households and seven million small to medium sized business (SMBs).
10. TRW Information Systems. Number of records compromised: 90 million
Date reported: 06/01/84 How it happened: A stolen computer password
Despite happening over 30 years ago the TWR breach remains on the all time biggest data bungles in history.
TRW Information Systems was an American corporation that was involved in a variety of businesses, including aerospace, automotive, and credit reporting until it was acquired by Northrop Grumman in 2002.
In 1984 retro-hackers managed to use a stolen computer password to access the firm's systems and compromise the credit histories of over 90 million people.
8. The Korea Credit Bureau. Number of records compromised: 104 million
Date reported: 01/30/14 How it happened: An inside job
The Korea Credit Bureau investigation alleged the breach was caused by an IT worker who copied the names, social security numbers and credit card details of 104 million customers onto a USB stick before selling them to a marketing firm.
7. Home Depot. Number of records compromised: 109 million
In the wake of the breach former chief information officer Beth Jacob resigned from her role in the wake of a data breach in March 2014. Target chief executive Gregg Steinhafel soon followed and stepped down from his role in May 2014.