Learning Android Forensics by Tamma Rohit & Tindall Donnie

Author:Tamma, Rohit & Tindall, Donnie
Language: eng
Format: epub
Publisher: Packt Publishing
Published: 2015-04-29T16:00:00+00:00

Network dataIntegrated Circuit Card Identifier (ICCID): Serial number of the SIM

International Mobile Subscriber Identity (IMSI): Identifier that ties the SIM to a specific user account

MSISDN: Phone number assigned to the SIM

Location Area Identity (LAI): Identifies the cell that a user is in

Authentication Key (Ki): Used to authenticate to the mobile network

Various other network-specific information

With the rise in capacity of device storage, SD cards, and cloud backups, the necessity for storing data on a SIM card has decreased. As such, most modern smartphones typically do not store much, if any, user data on the SIM card. All network data listed above does still reside on the SIM, as a SIM is necessary to connect to all modern (4G) cellular networks.

As with all Android devices, though there is no concrete stipulation that user data can't be stored on a SIM, it simply doesn't happen by default. Individual device manufacturers can easily decide to write user data to the SIM, and individual users can download applications to provide that functionality. This means that a device's SIM card should always be examined during a forensic examination. It is a very quick process, and should never be overlooked.

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