Today, mobile devices have become indispensable tools in personal and professional spheres, which requires a high level of security for data storage and transmission. The article is devoted to a comparison of the Android and iOS platforms in the context of mobile communication encryption, as well as their use in digital forensics. The features of the architectures of these platforms, security mechanisms, Trusted Execution Environment in Android and Secure Enclave in iOS, and loading processes that affect data protection are considered. The key methods of detecting digital evidence and their effectiveness when working with open sources are analyzed. Conclusions are drawn on the advantages and disadvantages of each platform in terms of ensuring information security and forensic research. Special attention is paid to the methods of studying encrypted information, the use of AES-256 algorithms in GCM mode, as well as the capabilities of the platforms in storing and analyzing digital evidence. The study identifies the advantages and disadvantages of the data protection mechanisms of both platforms, focusing on the impact of their architecture on the effectiveness of forensic analysis. T
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