CHERRY HILL, N.J. (CBSNewYork/AP) — TD Bank on Saturday began notifying about 260,000 customers all along the Eastern Seaboard that their personal information may have been affected by a security breach.

TD Bank spokeswoman Rebecca Acevedo told the Associated Press that unencrypted backup data tapes were misplaced in transport back in March.

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The tapes contained bank customers’ personal information, including account information and Social Security numbers, but the company is not aware of any misuse of customer information, Acevedo said.

Still, TD Bank has not ruled out the possibility and is monitoring the situation.

Bank customers from Maine to Florida may have been affected.

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Acevedo said the bank is sending letters to customers whose data was on the tapes, and is offering them free credit monitoring and identity theft protection.

TD Bank has 8 million customers, and is based in Cherry Hill, N.J., and Portland, Maine.

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