Day 3 at Cannes Lions 2026 brought some of the week's most insightful conversations from Hearst House. Signal & Noise sat down with leaders from Experian, Klarna, Zeta Global, Hearst, ID5, Real Chemistry, Omnicom Media Group Health, and MediaRadar to explore AI deployment, identity, healthcare innovation, measurement, and why trusted data and premium content are becoming more valuable as the industry moves from AI experimentation to real-world execution.