About 3.6 million Social Security numbers and 387,000 credit and debit card numbers have been exposed in a cyber attack, according to the S.C. Department of Revenue.

Most of the credit cards are protected by strong encryption that’s deemed sufficient under credit card industry standards to protect the data and the cardholders, the DOR said. About 16,000 are unencrypted.

To protect taxpayers, the state will provide anyone affected with one year of credit monitoring and identity theft protection. No public funds were accessed or put at risk.

Anyone who has filed a S.C. tax return since 1998 may have been affected.

To find out if your information was compromised, call 1-866-578-5422 and visit protectmyid.com/scdor.

More details will be posted as they become available.

Contact AMANDA KELLEY at 626-0381.