HARTFORD, Conn. (Legal Newsline) - Connecticut Attorney General George Jepsen wrote a letter on Wednesday to the vice president of Barnes & Noble Inc. seeking additional information about a recent data breach that affected Connecticut consumers.

Three Barnes & Noble stores in Connecticut were affected when hackers breached point-of-sale keypad card terminals to access personal identification numbers along with debit and credit card information. The breach, which occurred prior to September 14, affected stores in West Hartford, Stamford, North Haven and 60 other stores throughout nine states in total.

An undetermined amount of customers in Connecticut may have been affected by the breach.

"Given the possible impact on individuals in Connecticut and elsewhere, my office is requesting detailed information on how this breach occurred, what steps have been taken to protect the affected individuals, and what new procedures have been adopted to prevent future data breaches," Jepsen said in a letter to Gene DeFelice, the vice president, general counsel and corporate secretary of Barnes & Noble.

Barnes & Noble announced on Wednesday that it had discontinued use of PIN pads in its approximately 700 stores throughout the U.S. after detecting the breach.

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