NEW YORK (CNNMoney.com) - People's Bank said it is notifying about 90,000 customers affected by a recently lost tape that contained personal information.

The tape was lost while being sent via UPS to credit reporting bureau TransUnion, the Bridgeport, Conn.-based bank said in a statement dated Wednesday.

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The missing tape contained confidential information about customers, including bank employees, who have overdraft protection for their personal checking account.

The lost tape contains information about these overdraft-protected accounts, such as names, addresses, social security and checking account numbers, the statement said. It does not have data on checking account balances, debit card numbers, personal identification numbers (PINs) or birth dates.

People's (Research) said it hasn't received reports of unauthorized activity and doesn't believe the information has been used inappropriately.

The bank said the information on the lost tape isn't sufficient to allow unauthorized access to customers' accounts and that there is no need for customers to close any accounts to safeguard their security.

People's said it will provide customers affected by the lost tape with a free year of a credit monitoring service, which will alert customers to possible fraud associated with their personal information.

The People's Bank incident comes a little more than a week after H&R Block (Research) said it mistakenly included recipients' Social Security numbers on mailing labels it used to send out free tax return software.

The tax preparer said a small percentage of recipients of the mailing received the defective labels. The nine-digit Social Security numbers were mistakenly embedded within a string of 47 numbers and characters on the labels. No information was lost or stolen, H&R said in a statement.

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