Heartland Payment Systems leads all of the hacks that hit or affected the financial services industry in 2009. RBS WorldPay hacked 1.5 million credit and debit cards in a well-orchestrated ATM card scam in February 2009. PayChoice, a New Jersey-based payroll processor, reported its second time in less than a month that its network had been breached for a second time. A man posing as an Air Force reservist got thousands of account numbers from Countrywide Financial in Forth Worth, Texas.”]
Source: https://www.bankinfosecurity.com/top-9-breaches-2009-a-2001