This document discusses the importance of cyber security and some common cyber threats. It notes that cyber security aims to protect networks, devices, programs and data from unauthorized access or damage. Some key risks of poor cyber security include identity theft, monetary theft, and legal ramifications. Common attack vectors include web browsers, IM clients, web applications, and excessive user rights. The document also discusses the CIA triad of confidentiality, integrity and availability as core aspects of cyber security. Common threats include phishing, social engineering, malware, ransomware, and business email compromise through fake websites. Phishing remains a significant threat, with statistics showing its prevalence in targeting individuals and small businesses.