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Explore the technical underpinnings of Bluetooth trackers from Apple and Google in this 40-minute conference talk from the 38th Chaos Communication Congress (38C3). Learn about the principles behind Apple's "Find My" network and Google's "Find My Device" system, including their participation in the IETF draft for Detecting Unwanted Location Trackers (DULT). Discover how to analyze and interact with these trackers using standard Bluetooth Low Energy (BLE) research tools, with practical demonstrations using devices like hackrf/rad1o. Gain insights into both the reverse-engineered Apple protocol and Google's publicly available specifications, while understanding the creative potential for ethical hacking applications. Speaker Henryk Plötz combines technical demonstrations, fundamental explanations, and encouragement for innovative uses of this technology.
