With the development of information technology and the widely application of computer networks,the criminal activities of damaging communication networks and information security have risen, and thus computer forensics has become a new focus. Computer forensics is a technology field that attempt to provide thorough, efficient, secure means and program methods to investigate computer crime, the key is to ensure that computer evidence must be authentic, accurate, complete, and convincing to juries. In this paper, the technologies and methods of computer forensics of criminal activities in communication networks have been discussed and analyzed with much more detail.
