There's nothing worse than a data breach that costs millions. But Heartland Payment Systems Inc., which had to deal with a data breach that exposed 100 million credit and debit cards earlier this year, learned some very valuable lessons.

Heartland's CEO Robert Carr talked to CSOonline.com about what the company learned, what it cost and what it plans to do differently. Among other things, Carr tells the website that auditors failed the company when they didn't detect security flaws. He also believes the company's move to inform customers of the breach before the media had a chance to was the best thing they could have done. 

For more on Heartland's heartburn:
- check out this CSOonline.com article

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