India, June 12 -- Grocery shoppers across the United States have noticed barer-than-usual shelves lately after a cyberattack has disrupted operations at United Natural Foods Inc. (UNFI), one of the country's biggest food distributors, including Whole Foods.

During a 10 June earnings call, UNFI CEO Sandy Douglas revealed the company is still reeling from the impact of the attack. "We are partnering with customers across the country and across our formats in various short term mode to serve their needs as best as we possibly can," Douglas said.

"Any way that we can help them meet their needs, we're doing."

The company first detected suspicious activity on June 5 and quickly began investigating. Douglas noted they acted within days to shu...