Major US grocery chains hit by cybersecurity incident

You pull out your phone to check your grocery store's digital coupons or place an order for dinner. Suddenly, the app won't open. The website is unavailable, and the groceries you were counting on for tonight may never arrive. For anyone who depends on online grocery shopping, that's a frustrating problem.

That's the situation shoppers encountered this week at several major U.S. supermarket chains. A cybersecurity incident at grocery giant Ahold Delhaize forced the company to take some systems offline.