This chapter introduces the field of digital forensics. It is intended as an overview to permit the reader to understand the concepts and to be able to procure the appropriate assistance should the need for digital forensics expertise arise. Digital forensics is the application of scientific techniques of discovery and exploitation to the problem of finding, verifying, preserving, and exploiting digital evidence for use in a court of law. It involves the use of hardware and software for finding evidence of criminal activity on digital media, either in a computer or in a network device, and attributing that evidence to a suspect for the purposes of conviction. Digital forensics can also be used for non-law enforcement purposes. Data recovery is a form of computer forensics used outside of the legal arena. The authors hope that the reader will understand some of the intricacies of digital forensics and be able to intelligently respond to incidents requiring a digital forensic response.