Data leaks (or data breaches) occur when hackers penetrate the IT systems of companies that process payments. Once the hackers get into these IT systems, they can intercept information such as credit card numbers.
In 2014, a massive data leak of private and business clients occurred at JP Morgan Chase; clients’ details were accessed, but their credit card information was not. Earlier in 2013, Target was hacked; in that case, credit card information was leaked. The table below lists some of the largest data breaches in recent years.
|Company||Date||Number||Type of records|
|JP Morgan Chase||2014||76,000,000||Names, addresses, phone numbers, emails|
|Target||2014||70,000,000||Credit card information|
|Home Depot||2014||56,000,000||Credit card information|
Sources: Yahoo ; JP Morgan Chase [2,3]; Target [4,5,6]; Home
Depot ; Weebly ; list of data breaches .
- Yahoo discloses new breach of 1 billion user accounts, new york times, december 15, 2016.
- Reuters. Jpmorgan hack exposed data of 83 million, among biggest breaches in history.
- New York Times. Jpmorgan chase hacking affects 76 mil- lion households.
- The Huffington Post. Target hacked: Retailer confirms ‘unautho- rized access’ of credit card data.)
- CNN. Target settles for $39 million over data breach.
- Wikipedia. Target now says 70 million people hit in data breach, the wall street journal, january 10, 2014.
- Krebs on Security. Banks: Credit card breach at home depot.; September 2014.
- TechCrunch. Weebly hacked, 43 million credentials stolen.; October, 2016.
- Wikipedia. List of data breaches; 2017.