During World War II, the U.S. Office of War Information launched a poster campaign with the slogan “Loose lips sink ships,” urging Americans to avoid careless talk that could jeopardize the war effort. In our modern context, “loose lips” can sink not ships, but entire investigations, careers and even companies. In a guest article, Ann Sultan, a member of Miller & Chevalier, and Ian Moolman, an ethics and business integrity manager at Emirates Global Aluminium (EGA), examine best practices for protecting investigations from leaks, factors that influence confidentiality measures and the role of emerging technologies. See “Navigating U.S. Privacy Laws in Internal Investigations” (Aug. 28, 2024).