CDK Global calls cyberattack that crippled its software platform a "ransom event"

CDK Global is now calling the cyberattack that took down its software platform for its auto dealership clients "a ransom event." 

In a note to clients Saturday, CDK for the first time acknowledged that the hackers that made its dealer management system, or DMS, unavailable to clients for days, are demanding a ransom to restore its systems. 

"Thank you for your patience as we recover from the cyber ransom event that occurred on June 19th," CDK said in a memo to clients on Saturday, according to a copy of the email obtained by CBS MoneyWatch.