DNR finds malware in Tettegouche computers, warns recent visitors

Minnesota officials are urging recent visitors to Tettegouche State Park to keep an eye on their credit card accounts after malware was found on state computers there.

While there's no evidence that credit card numbers were accessed, those who visited the North Shore park and charged items Aug. 22-25 are being asked to review their credit card accounts for suspicious activity, the Minnesota Department of Natural Resources said Friday.

About 400 credit card transactions took place at the park during the period in question. The DNR said since it can't access the personal information of credit card customer, it can't contact those who made the transactions. If those potentially affected see any unusual activity in their credit card accounts, they should report it to their credit card issuer.

"The virus was isolated to computers at the park. No other DNR or state IT systems were affected, including the state park reservation system and the DNR website," the agency said in a statement. "Customers should not worry that their park reservation data was compromised."

The state is conducting a full forensic analysis to learn more about what happened, officials said.