Explore the critical issues surrounding mobile phone privacy and security in this Black Hat conference talk. Delve into the vulnerabilities of cellular network infrastructure, including IMSI catcher attacks and silent SMS tracking. Learn about a new Android-based privacy framework designed to protect users from these threats. Discover the hidden security features of mobile communication systems and witness a live demonstration of the framework detecting these vulnerabilities. Gain insights into GSM security issues, IMSI catcher detection techniques, and future developments in mobile privacy protection. Understand the importance of user awareness and the need for improved security measures from mobile operators, device manufacturers, and service providers.