TD Bank misplaced computer back-up tapes containing personal information for 267,000 customers, including 73,000 in Massachusetts, the Massachusetts attorney general’s office said Friday.
The bank told customers that two tapes disappeared in transit while being shipped to one of its location in March. The company has not been able to find the tapes. The tapes were unencrypted and contained extensive customer information, including Social Security numbers and bank account numbers, the bank told the office of Massachusetts Attorney General Martha Coakley.
TD Bank, one of the largest regional banks in the United States, had previously refused to say how many customers may have been affected by the error.
TD Bank spokeswoman Rebecca Acevedo confirmed that the missing tapes included information about 73,000 customers in Massachusetts.
“We want to reassure people that there is no evidence that any of this data is being misused and that we continue to monitor customer accounts closely,’’ she said in a statement Friday.
Acevedo added that the bank is notifying customers. She said the bank waited more than six months to tell customers while it fully investigated the situation.
“This was an isolated incident,’’ she said. “We understand this is a difficult situation for our customers and apologize for the inconvenience.’’