The last time you probably thought about supply chains was during the early days of the COVID-19 crisis when the toilet-paper shelves were empty. But that TP had to wend its way through a complex journey from pulp mills to your home that involved many parties and chains of events. Disrupt just one step — say because of pandemic fears or fraud — and the chain breaks. Here’s how to help prevent supply chains from fraudulent acts and mitigate them when they do break.