Bank of America says that some of the information from its check cards have been compromised. In a letter to customers Bank of America said:

We have learned that information from certain Bank of America Check Cards may have been compromised. Your Check Card number may have been part of this compromise. To ensure that your privacy is protected to the best of our ability we have taken the following steps:

As a measure of added security we have issued you a replacement Bank of America check Card. It is included with this letter.
Your old card will be closed within 30-days of this letter.
We will monitor activity on your Bank of America account; if we detect any suspicious transactions we will notify you immediately.