Home Depot on Thursday announced that a data breach between April and September may have put an estimated56 million payment cards from its U.S. and Canadian networks at risk. That would make it the largest compromise of debit and credit cards in the string of cyberattacks that have hit retailers over the past year.
Take a look at some of the biggest data breaches of all time.
8. Sony Corporation (2011) -- 24.6 million PlayStation accounts compromised at a cost of $1.476 million
7. CardSystems (2005) -- 40 million credit card records lost at a cost of $2.4 million
6. Epsilon (2011) -- 60 million customer emails exposed, no cost available
5. Sony Corporation (2011) -- 77 million PlayStation accounts compromised at a cost of $4.62 million
4. TRW, now Experian (1984) -- 90 million credit reports lost at a cost of $5.4 million
3. TJX Companies Inc. (2007) -- 94 million credit and debit card records lost at a cost of $5.64 million
2. Target (2013) - Up to 110 million Target customers had data stolen from July to October 2013, and the company revealed the breech at the height of the 2013 holiday shopping season. The company said 40 million debit and credit card numbers were stolen and as many as 70 million customers had personal information stolen, although there may be some overlap on the lists.
1. Heartland Payment Systems (2009) -- 130 million credit card records lost at a cost of $7.8 million