The article discusses the evolution of security and privacy research, proposing a third wave focused on inclusive security and privacy. The first wave focused on technical mechanisms, while the second wave emphasized usability. The third wave, inclusive security and privacy (inclusive S&P), aims to design mechanisms that are accessible and inclusive to people with diverse abilities, needs, and values. The author presents a research framework and agenda for advancing inclusive S&P, highlighting the importance of considering accessibility, cultural backgrounds, and universal design principles. The article emphasizes the need for more systematic research on under-served populations, such as visually impaired users, older adults, and youth, to ensure their privacy and security needs are met. It also discusses design approaches for inclusive privacy, including participatory design, value-sensitive design, and universal design principles. The research agenda includes analyzing privacy challenges, designing inclusive privacy mechanisms, and developing design guidelines for inclusive S&P. The author argues that inclusiveness should be a fundamental consideration in all security and privacy designs, not just a niche concern for a few designers. The article concludes by advocating for a more inclusive approach to security and privacy research, emphasizing the importance of addressing the needs of under-served populations.The article discusses the evolution of security and privacy research, proposing a third wave focused on inclusive security and privacy. The first wave focused on technical mechanisms, while the second wave emphasized usability. The third wave, inclusive security and privacy (inclusive S&P), aims to design mechanisms that are accessible and inclusive to people with diverse abilities, needs, and values. The author presents a research framework and agenda for advancing inclusive S&P, highlighting the importance of considering accessibility, cultural backgrounds, and universal design principles. The article emphasizes the need for more systematic research on under-served populations, such as visually impaired users, older adults, and youth, to ensure their privacy and security needs are met. It also discusses design approaches for inclusive privacy, including participatory design, value-sensitive design, and universal design principles. The research agenda includes analyzing privacy challenges, designing inclusive privacy mechanisms, and developing design guidelines for inclusive S&P. The author argues that inclusiveness should be a fundamental consideration in all security and privacy designs, not just a niche concern for a few designers. The article concludes by advocating for a more inclusive approach to security and privacy research, emphasizing the importance of addressing the needs of under-served populations.