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Explore Apple's groundbreaking C1 baseband chip introduced with the iPhone 16e in this 24-minute conference talk from Objective-See Foundation's OBTS v8.0. Discover how Apple's first entirely in-house baseband architecture compares to previous Qualcomm and Intel solutions, and understand why this represents a significant advancement for security researchers. Learn about the C1's internal security architecture and firmware structure, while gaining insights into updated research tooling that makes baseband analysis more accessible. Examine the critical role of carrier profiles in iPhone baseband functionality, including their configuration properties for 5G Standalone and RCS services across various global cellular networks. Get introduced to new automated tooling designed to monitor and compare carrier profile changes across different iOS versions and baseband models, addressing a previously unmet need in the research community. Gain technical insights from a computer science researcher specializing in iPhone cellular communication security at TU Darmstadt's Secure Mobile Networking Lab.
