Like many Chicagoans, downtown business leaders were worried about potential unrest in late summer 2020 after the police shooting of Jacob Blake in Kenosha, Wis. Unlike most Chicagoans, they had access to real-time updates directly from city officials on an invitation-only Slack channel for office building owners and managers, retailers, condo associations and others in the central business district. This exclusive communications pipeline—the existence of which hasn’t been reported previously—provided information on planned protests, crowd movements, police tactics and other developments that wasn’t available to the general public.