FAIL (the browser should render some flash content, not this).
FAIL (the browser should render some flash content, not this).
A SIM, which stands for Subscriber Identity Module, is a small flat tamperproof computer module.  All GSM compatible mobile phones have one to manage user account and personal information.
When inserted into a GSM mobile phone, the SIM is powered on. The phone can then communicate with the SIM to obtain various types of information stored and this in turn allows authentication and access to the network communication services.


A SIM comes in two sizes:

  • mini-SIM (left) is the most popular size , no bigger than a postage stamp.
  • Older phones take a full size SIM; the size of a credit card.

A SIM has two main purposes inside the mobile phone; to provide identity for the subscriber, and to provide authentication for the mobile phone with the GSM network it is connecting to.  The SIM can be easily removed from the mobile phone allowing the subscriber to change phones and still keep his/her favourite telephone numbers and received text messages.


What kind of information is stored on the SIM?

In addition to a unique identity number for the subscriber and secret key data for accessing the GSM network, the SIM can store other types of information, including:

     - personalised (favourite) telephone numbers
     - text messages (also known as SMS messages)
     - local GSM radio transmitter frequencies
     - current location
     - last few numbers dialled
     - preferred networks to use abroad
     - customer specific applications (e.g. news headlines, lottery, share prices)

A SIM has a typical memory size of between 16K and 64K, and can hold around 200 favourite telephone numbers and 20 text messages.

We offer a 24x7 comprehensive investigation service that involves the recovery of digital information. Our experts work with clients to determine the nature of incidents and use established computer forensic investigation techniques to preserve evidence, whilst maintaining its continuity and integrity. Our analysts are Certified Information Security Professionals (CISSPs) and trusted to undertake the most sensitive of investigations.

Our analysts contribute to a number of leading working groups as well as undertaking constant research into these spheres, to ensure our approaches to handling mobile evidence remain in touch with leading Best Practice.

 
 
Computer Crime & e-Crime
Computer crime, cybercrime, e-crime, hi-tech crime or electronic crime generally referrers to criminal activity where a computer or network is the tool, target, or place of a crime. These categories are not exclusive and many activities can be characterized as falling in one or more category.

Although the terms computer crime or cybercrime are more properly restricted to describing criminal activity in which the computer or network is a necessary part of the crime, these terms are also sometimes used to include traditional crimes, such as fraud, theft, blackmail, forgery, and embezzlement, in which computers or networks are used to facilitate the illicit activity.

Computer crime can broadly be defined as criminal activity involving an information technology infrastructure, including illegal access (unauthorized access), illegal interception (by technical means of non-public transmissions of computer data to, from or within a computer system), data interference (unauthorized damaging, deletion, deterioration, alteration or suppression of computer data), systems interference (interfering with the functioning of a computer system by inputting, transmitting, damaging, deleting, deteriorating, altering or suppressing computer data), misuse of devices, forgery (ID theft), and electronic fraud.

BURTON DIGITAL have extensive experience in assisting clients that have been charged with offences under he 'Computer Misuse Act 1990'. Our unique laboratory facilities means we can use our in-house forensic analysts to study the evidence and provide support to the defence case preperations.
BURTON COPELAND | AFENTIS FORENSICS | DRIVINGOFFENCE.COM
Burton Copeland LLP solicitors of England and Wales, regulated by the Solicitors Regulation Authority and the Rules of the Law Society
Registered England & Wales No: OC316122. | VAT No: GB 306 9718 42 | Registered office Astley House, Quay Street, Manchester, M3 4AS