The study highlights the growing cybersecurity risks caused by the widespread integration of AI-powered personal assistant Siri into daily devices, pointing out the need for understanding and controlling these risks to safeguard user privacy and security. Using ISO/IEC 27005, this study systematically examines the cybersecurity risks connected with Siri, aiming to identify vulnerabilities and appropriate mitigation techniques. The integration of Siri into our daily devices requires a comprehensive risk analysis and mitigation strategies to safeguard user data privacy and security in an ever-changing technological world. By carrying out a quantitative analysis, this study provides vital insights toward strengthening the safety measures of AI-powered personal assistants such as Siri, thereby improving user safety.