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Android emulator patch for configurable IMEI, IMSI and SIM 6 Ways to Get Your Mobile Number from Your SIM - wikiHow Find the serial number or IMEI on your iPhone, iPad or

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2014)

Phone cloning is the transfer of identity from one cellular device to another.

Contents

  • 1 AMPS cloning
  • 2 CDMA cloning
  • 3 GSM cloning
  • 4 Effectiveness and legislation
  • 5 See also
  • 6 References

AMPS cloning[edit]

Main article: Advanced Mobile Phone System § Cloning

Analogue mobile telephones were notorious for their lack of security. Casual listeners easily heard conversations as plain narrowband FM; eavesdroppers with specialized equipment readily intercepted handset Electronic Serial Numbers (ESN) and Mobile Directory Numbers (MDN or CTN, the Cellular Telephone Number) over the air. The intercepted ESN/MDN pairs would be cloned onto another handset and used in other regions for making calls. Due to widespread fraud, some carriers required a PIN before making calls or used a system of radio fingerprinting to detect the clones.

CDMA cloning[edit]

A selection of mobile phones that can be cloned.

Code Division Multiple Access (CDMA) mobile telephone cloning involves gaining access to the device's embedded file system /nvm/num directory via specialized software or placing a modified EEPROM into the target mobile telephone, allowing the Electronic serial number (ESN) and/or Mobile Equipment Identifier (MEID) of the mobile phone to be changed. The ESN or MEID is typically transmitted to the cellular company's Mobile Telephone Switching Office (MTSO) in order to authenticate a device onto the mobile network. Modifying these, as well as the phone's Preferred Roaming List (PRL) and the mobile identification number, or MIN, can pave the way for fraudulent calls, as the target telephone is now a clone of the telephone from which the original ESN and MIN data were obtained.

GSM cloning[edit]

This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2014)

Cloning has been shown to be successful on CDMA, but rare on GSM. However, cloning of a GSM phone is achieved by cloning the SIM card contained within, but not necessarily any of the phone's internal data. GSM phones do not have ESN or MIN, only an International Mobile Station Equipment Identity (IMEI) number. There are various methods used to obtain the IMEI and MIN. The most common methods are to hack into the cellular company, or to eavesdrop on the cellular network.

A GSM SIM card is copied by removing the SIM card and placing a device between the handset and the SIM card and allowing it to operate for a few days and extracting the KI, or secret code.[citation needed] This is normally done with handsets that have the option of an "extended battery" by placing the normal size battery in the handset and the Kopy Kat[clarification needed] in the now vacant extra space. This is done by allowing the device to log the interaction between the mobile telephone switching office and the handset.

Effectiveness and legislation[edit]

Phone cloning is outlawed in the United States by the Wireless Telephone Protection Act of 1998, which prohibits "knowingly using, producing, trafficking in, having control or custody of, or possessing hardware or software knowing that it has been configured to insert or modify telecommunication identifying information associated with or contained in a telecommunications instrument so that such instrument may be used to obtain telecommunications service without authorization."[1]

The effectiveness of phone cloning is limited. Every mobile phone contains a radio fingerprint in its transmission signal which remains unique to that mobile despite changes to the phone's ESN, IMEI, or MIN. Thus, cellular companies are often able to catch cloned phones when there are discrepancies between the fingerprint and the ESN, IMEI, or MIN.[citation needed]

See also[edit]

  • Subscriber identity module
  • Dual SIM
  • International Mobile Equipment Identity

References[edit]

  1. ^ http://beta.congress.gov/bill/105th/senate-bill/493


Android emulator patch for configurable IMEI, IMSI and SIM 6 Ways to Get Your Mobile Number from Your SIM - wikiHow


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