McDonald's says hackers breached its operations in some markets, exposing some US business info and delivery customer data in South Korea and Taiwan (Heather Haddon/Wall Street Journal)

Heather Haddon / Wall Street Journal:
McDonald's says hackers breached its operations in some markets, exposing some US business info and delivery customer data in South Korea and Taiwan  —  Hack exposed some U.S. business information, customer data in South Korea and Taiwan  —  McDonald's Corp. said hackers stole some data …