Ch 20 Mobile Forensics

cellular system

network of transceivers for low power transmitters can reach phones in their coverage areas

analog 1G

modulated radio signals to carry info

digital 2G

handheld phones, circuit switched

mobile broadband networks 3G

made phones into computers, packet switched

native IP 4G

access internet directly through wifi

operating system OS

custom designed program that controls components of mobile devices and facilitates how they function

geolocation

assessment of geographical location of mobile device

GPS

system for determining position by comparing radio signals from several satellites

chipset

hardware that makes the device work

physical extraction

duplicate of data located on device, bit by bit copies of file system

logical extraction

snapshot of the file system showing what the file system wants the use to see, examiner gets same view that user gets

secure digital SD cards

storage expansion cards for mobile devices, nonvolatile

subscriber identification module SIM cards

have international mobile subscriber identity IMSI number that associates phone with mobile network

file system

software mechanism that defines the way files are named, stored, organized, and accessed

hybrid crime assessment

technique used when physical crime has digital element to it

casual chains

describe the events of a crime in terms of cause and effect

temporal chains

show events in the order in time in which they occurred