In the past year, viral lies and conspiracies have saturated our public discourse, with concrete results. The scale and speed with which falsehoods have spread about everything from the outcome of the 2020 election to the Jan. 6 attack to COVID-19 vaccines, and much else, have led to real-world consequences for companies and people—ruined reputations, lost business value, security expenses, and death threats, to name a few. The prevalence of disinformation can impact all kinds of businesses by affecting corporate brands, sales, partnerships, employee and customer retention, physical security, and even stockholder activism.