This lecture covers the basics of cybersecurity, including the importance of protecting systems from digital attacks, the motivation behind cybercrimes, and the fundamental goals of security (CIA: Confidentiality, Integrity, Availability). It also discusses the assets relevant to cybersecurity, the different threat agents, and the risk-based approach to security. The session provides insights into the world of cyber threats, such as hacktivists, robbers, and organized crime, and emphasizes the significance of cybersecurity in today's technologically-dependent world.