Credit card payment processor Heartland Payment Systems may be the victim of the largest breach to date.The Princeton, N.J.-based firm said Tuesday that it discovered malicious software in its systems that compromised the security of the data traversing its network.
It's unclear what data may have been tampered with or stolen, but Heartland said no merchant data, cardholder Social Security numbers, unencrypted PIN numbers, addresses or telephone numbers "were involved in the breach."
The company also advised consumers to examine their monthly statements closely.
Heartland told The Washington Post that it processes 100 million credit and debit card transactions per month. This volume led analysts to surmise that the company's breach could be the world's biggest to date. (more)
