According to the Boston Herald, US banking giant Bank of America has admitted that it is currently reissuing credit cards to customers believed to have been hit by the TJX security breach, which could affect millions of cardholders in the US alone.

The financial services provider kept details close to its heart and refused to reveal how many cards it was reissuing. Nor would it disclose which states the fraudulent activity occurred in.

The TJX computer breach was announced on January 22, 2007, confirming that hackers had managed to gain access to a confidential credit database via the computer systems used by TJX, which owns retail outlets TJ Maxx and Marshalls. The cyber-thefts targeted stores across the US and Puerto Rico, but concerns have also been raised in the UK, at TJX’ TK Maxx stores.

Bank of America joins a whole host of banks that have taken precautions to protect their customers from suffering from potential fraud by reissuing cards to those they believe are vulnerable to the attack.

TD Banknorth has already confirmed it is reissuing 200,000 cards, along with Tremont Credit Union, which has also admitted to reissuing cards as a means of precaution, according to the Boston Herald.