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.

IT experts are still working around the clock to figure out what all was compromised, officials said. 

County officials said they could not yet say what type of attack the hackers perpetrated, but that “multiple critical systems have been impacted in all county offices.”