The Ontology of Malwares

Absolute security is almost impossible. On a daily basis the security of many systems is compromised. Attackers utilize different techniques to threaten systems’ security. Among different threats to systems’ security, malware poses the highest risk as well as the highest negative impact. Malware can cause financial losses as well as other hidden cost. For example, if a company system has been compromised, the company could suffer negatively on the reputation and trust level from a publicized malware incident. This chapter provides a detailed description about different malware categories and how to protect against each type.