{video} Auto retailers across the US are likely to be out of service for days following a second major cyberattack at CDK Global, the software provider that thousands of dealers rely on to run their stores. “At this time, we do not have an estimated time frame for resolution and therefore our dealers’ systems will not be available likely for several days,” the company said in a communication sent to customers on Thursday that has been reviewed by Bloomberg. A CDK spokesperson did not immediately respond Thursday to an email and phone message inquiring about the message it sent to customers. CDK informed customers ... (full story)