"The burger chain said Friday that it recently hired external consultants to investigate unauthorized activity on an internal security system, prompted by a specific incident in which the unauthorized access was cut off in a week... Attackers stole customer emails, phone numbers and addresses for delivery customers in South Korea and Taiwan, the company said. In Taiwan, hackers also stole employee information including names and contact information..." https://www.wsj.com/articles/mcdonalds-hit-by-data-breach-in-south-korea-taiwan-11623412800
