CDK Global Inc., a key software supplier to car dealerships in North America, experienced a cyberattack today that forced the company to take its systems offline around 2 a.m. EDT, disrupting regular business transactions. Although CDK has not released an official statement, a spokesperson confirmed that all systems were shut down for extensive testing and consultation with external experts. Core systems have been restored, with additional applications undergoing testing. The attack, likely ransomware, caused significant disruptions during the busy car buying season, forcing dealerships to process orders manually and delaying purchases.