Explore the Clear Site Data HTTP header, a powerful tool for web application developers and security teams, in this 25-minute lightning talk from AppSecCali 2019. Discover how this relatively new mechanism offers significant security and privacy benefits with minimal effort. Gain insights from original research on Clear Site Data adoption and learn practical techniques for maximizing its effectiveness. Presented by Caleb Queern, Cyber Security Services Director at KPMG, this talk provides valuable information for those interested in enhancing web application security and user privacy.