The Mimecast Threat Intelligence Report capitalizes on research conducted by the Mimecast Threat Center that provides analysis of 67 billion rejected emails. The research reinforces a previously observed trend: malware-centric campaigns are becoming increasingly sophisticated and complex, often using different pieces and types of malware in different phases of the attack. In addition, the research also highlights the continued use of well-known malware within attacks, which is easily identified and blocked, as well as simple social engineering tactics intended to fool victims.