Top 10 Data Breaches in 2009 Expose 220 Million Records

According to Identity Theft Resource Center, government agencies and businesses reported 435 breaches as of November 17^th.  More than 220 million records were exposed so far in 2009.  Here are the ten biggest data breaches by volume, according to the ITRC’s numbers:

1. Heartland Payment Systems - Records exposed: 130 million
2. National Archive and Records Agency - Records exposed: 76 million
3. Virginia Prescription Monitoring Program - Records exposed: 8.3 million
4. Health Net Insurance - Records exposed: 1.5 million
5. Oklahoma Department of Human Services - Records exposed: 1 million
6. Blue Cross Blue Shield - Records exposed: 850,000
7. Network Solutions - Records exposed: 573,000
8. Jackson Memorial Hospital - Records exposed: 200,000
9. University of North Carolina, Chapel Hill - Records exposed: 163,000
10. University of California, Berkeley - Records exposed: 160,000

Larger breaches may have occurred but were never reported.  Also only breaches where the ITRC had determined the total number of records exposed were included.