Vulnerability refers to weaknesses in a system's design, implementation, operation, or internal control that could be exploited to violate the system's security policy. Coursera's vulnerability skill catalogue teaches you how to identify, analyze, and mitigate vulnerabilities in various systems. You'll learn about common vulnerabilities in software and hardware, techniques for vulnerability assessment, and the principles of secure design to prevent future vulnerabilities. The course will also equip you with the skills to understand and apply vulnerability management strategies and tools, including patch management and vulnerability scanning, essential for cybersecurity professionals, IT workers, and anyone interested in enhancing system security.