Cybercrime encompasses criminal acts committed using computers and networks. The document discusses the origin, methodology, and impact of cybercrime on individuals, organizations, and society. It provides reasons for cybercrime such as taking advantage of opportunities, accessibility of large amounts of data in one place, and lack of monitoring. Specific details are given about the prevalence and types of cybercrime in Bangladesh, sources of information about cybercrime, and the Cyber Appellate Tribunal established to hear appeals related to cybercrime cases. The Bangladesh Bank heist is also mentioned.