A Great Lakes-based insurer says it has suffered a security breach that may have compromised sensitive client data.

Thrivent Financial for Lutherans, Minneapolis, says it experienced a break-in at one of its offices in Pennsylvania. A laptop computer was among the items stolen. The laptop had safeguards to protect sensitive information, including strong password protection and encryption.

But Thrivent Financial says the information stored on the laptop may be at risk. The information on the laptop included personal information, including names, addresses, Social Security numbers and health information.

The company says it has no evidence suggesting that any information has been accessed or misused.

Thrivent Financial says it has notified affected members and clients, informing them that sensitive information “may have been exposed.” All affected individuals are being offered a year of free credit monitoring and identity theft assistance services.