GSM cloning refers to a process in which an
attacker obtains sufficient information to clone the subscriber identity module
(SIM) of a GSM mobile phone. The aim of GSM
cloning is to produce multiple copies of a subscriber
identity module (SIM) and defraud a network operator.
Independent tests have
questioned the strength of GSM's security mechanisms aimed at preventing
cloning, particularly if the attacker has physical access to the
subscriber identity module (SIM).
Other topics in our resources on GSM related to GSM cloning include: