CDK cyberattack ... subject of a cyber hack and ransom demand, Reuters reported Sunday. A group that says they hacked ...

Update: CDK hackers demand millions to end cyberattack crippling auto dealers, Bloomberg reports Car dealers nationwide are dealing with the fallout from a cyberattack this week that's said to ...

Bloomberg News had previously reported that a group of hackers claiming responsibility for a cyberattack on CDK's software systems has demanded millions of dollars in ransom to put an end to the hack.