Officials are continuing to decline to reveal new details surrounding an apparent cyberattack on one of the largest health systems in the U.S. It's a situation that security experts say often takes time to learn the full scope of the attack.

Diverted ambulances, cancer treatment delayed and electronic health records offline are just some of ripple effects of an apparent cyberattack on a major nonprofit health system that disrupted operations throughout the U.S. While CommonSpirit Health confirmed it experienced an ”“IT security issue” earlier this week, the company has remained mum when pressed for more details about the scope of the attack.

The president and CEO of Henry Ford Health announced Thursday that he is stepping down and taking another position with a Chicago-based health system.