Every day, consumers are targeted with precision-guided marketing from both legitimate sources and covert operators. Influencers use recommender systems, which are automated information filtering systems to control content in news feeds, social media environments and streaming media services. These systems know what information—good or bad—will capture a person’s attention. In this article in SIGNAL Magazine, I argue the time has come for U.S. cybersecurity teams to partner with industry to help preserve the digital commons from information pollution caused by foreign agents employing precision-guided marketing tools.