"The company was forced to immediately activate cyber incident response procedures and isolate its systems from CDK's platform, it said in a regulatory filing. Other major auto dealerships - including Penske, Sonic Automotive and Lithia Motors - warned the Securities and Exchange Commission that their operations also had been affected."
https://www.databreachtoday.com/cdk-begins-restoring-systems-amid-ransomware-payment-reports-a-25605
"The company was forced to immediately activate cyber incident response procedures and isolate its systems from CDK's platform, it said in a regulatory filing. Other major auto dealerships - including Penske, Sonic Automotive and Lithia Motors - warned the Securities and Exchange Commission that their operations also had been affected."
https://www.databreachtoday.com/auto-dealerships-using-cdk-global-hit-cyber-disruptions-a-25595