Cyber Polygon 2020 examined the threat of a complete supply chain breakdown. But what does that mean? Is it just no more toilet paper? Or is it something more sinister?

Perhaps we can shed some light on the situation here.

Food

According to the American Red Cross, most Americans have less than three days' worth of food in their homes. After three days with no food, starvation begins to set in. 

Grocery stores rely on just-in-time systems to get their food to their customers. On average, this means that a grocery store has roughly a week's worth of food within its four walls at any given time. However, remember that this is a week's worth of food in normal circumstances. As the 2020 toilet paper situation showed, once people fear they can't get more of something, they stock up. Therefore, a week's worth of food at the grocery store can be gone in a matter of days or hours.