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Learning iOS Forensics by Pasquale Stirparo, Mattia Epifani

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SIM cards

When conducting forensic examinations of mobile devices, it is also important to acquire and analyze the contents of associated SIM cards. The SIM is a type of smart card that allows the mobile device to connect to the cellular network through the cryptographic keys embedded in the SIM itself. The SIM is mainly characterized by the following two different codes that can be retrieved:

  • Integrated Circuit Card Identification (ICCID): This code is a 20 digit code that internationally and univocally identifies each SIM card
  • International Mobile Subscriber Identity (IMSI): This is a unique number 15 digits long (somewhere, like in South Africa, it's 14), which univocally identifies a user inside the mobile network

Although it is not the case ...

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