Computer forensics, also called cyber forensics, is the application of computer investigation and analysis techniques to gather evidence suitable for presentation in a court of law. The goal of computer forensics is to perform a structured investigation while maintaining a documented chain of evidence to find out exactly what happened on a computer and who was responsible for it.
The investigation of criminal activity that has occurred on the Internet. It deals with the analysis of the origins, contents, patterns and transmission paths of e-mail and Web pages as well as browser history and Web server scripts and header messages.
Mobile Forensics is the science of recovering digital evidence and data from a mobile phone number forensically. This includes full data retrieval and examination of data found on the SIM/USIM, the phone body itself and the optional memory cards.