![]() If performing an over-the-air software update, the operator should not simultane- ously have an evidence device or evidence storage connected to the forensic machine. Dont store digital evidence on any comput- er that is or will be connected to the Internet at any time. UFED operators should also adhere to the same best practices for both Touch and 4PC platforms that they do for any forensic computer installation: Isolate the forensic machine from the Inter- net while performing forensic examinations. While the operator should document which platform, version, and extraction type were used, no other differences fundamentally exist between UFED Touch and UFED 4PC extrac- tions. UFED software is designed to execute only read com- mands, and to prevent the opportunity to alter it to issue write commands to mobile devices. The UFED Touch and UFED 4PC interfaces and architecture are exactly the same. Users can only access limited functionalityshut down, log on/offand cannot access the Windows operat- ing system. The UFED Touch consists of standalone proprie- tary hardware, with the UFED software installed on the Microsoft Windows Embedded Stand- ard 2009 platform. The UFED 4PC is extraction software that can be installed on any PC platform, accessible and securable in the same way as any other PC-based software. UFED Basics Cellebrite makes mobile device evidence extraction available on two different platforms: the UFED Touch, or the UFED 4PC. 9 Boot loaders.10 Why Cellebrite boot loaders are forensically sound.10 Other physical extraction methodologies.11 Authentication and reporting.12 In Conclusion.13 Glossary of Terms.14 3. 4 Logical extraction.5 Logical extractions of iOS devices.5 How does the examiner know which method to choose?.6 File system extractions.7 Decoding.7 Can decoding miss some data?.8 Wear leveling and garbage collection.8 Physical extraction. ![]() What Happens When You Press that Button? Explaining Cellebrite UFED Data Extraction ProcessesĢ. ![]()
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