Norton has denied several requests for an interview since May 9.
Norton provides health care across the Louisville-area and serves about 600,000 patients a year.
The "cyber event" that ended with several systems being taken offline across North Healthcare properties earlier this week came as no surprise to Dr. Roman Yampolskiy, director of the cybersecurity lab at the University of Louisville.
Hackers recently attacked in Bardstown, trying to get the city to pay big to restore its internet systems.
Cyber operations against foreign actors, across the whole spectrum of offensive and defensive measures, began ahead of the election and will continue after the final ballot is cast.
Cybersecurity experts say Baltimore is playing with fire as a deadline to pay thousands of dollars in ransom to hackers holding several of the city's servers hostage has come and gone.