Food distribution giant United Natural Foods (UNFI) said it is making “significant progress” in recovering from a cyberattack that occurred almost two weeks ago, as grocery stores across North America reliant on the distributor continue to report food shortages.

In a shocking turn of events, a massive cyberattack has left shelves bare across 13 major grocery chains. This weekend, shoppers are advised to avoid these stores as they grapple with the aftermath of this unprecedented digital assault.