A major Michigan hospital system is among more than a dozen across the United States affected by a cyber-attack Monday.
University of Michigan Health spokeswoman Mary Masson says its public websites experienced intermittent problems as a result of a cyber-attack on a third-party vendor. She says all patient information is safe, since none of the impacted web sites contain patient information.
There are reports that a Russian hacker group is claiming responsibility for the cyber-attack. The group has been previously linked to similar cyber-attacks on bank and airport websites.
University of Michigan Health is the clinical division of Michigan Medicine, which is the academic medical center of the University of Michigan.