Cyberattacks seem to be more devastating than ever and taking targeted companies even longer to resolve.

The latest attack to receive wide attention continues that trend: An ongoing cyber incident at CDK Global, whose software car dealerships use to manage everything from scheduling to records, has crippled dealerships for days now, with no clear end in sight.

In May, a cyberattack on Ascension, a St. Louis-based nonprofit network that includes 140 hospitals in 19 states, forced the system to divert ambulances from several of its hospitals. It took almost a month to fully resolve the issue.

And in February ransomware attack on Change Healthcare, a subsidiary of healthcare giant UnitedHealth Group, caused billing disruptions at pharmacies across the US and threatened to put some health providers out of business.

Experts say hackers are getting more sophisticated and can hide in an organization’s systems for longer undetected. These hackers target companies in a supply chain-style attack, taking down entire industries to leverage more money. And certain industries that often use outdated systems, like healthcare, are becoming even easier targets.

“We can’t even compare what was going on ten years ago to what’s going on today,” Dror Liwer, co-founder of cybersecurity company Coro, told CNN. “(Hackers) are in the game for much bigger gains than they were before.”

Read the full story at CNN.com