As the CISO for a publicly traded company, it is vital to ensure availability for my systems. In order to do this I would implement data backup and recovery, redundant infrastructure, employee training, and regular testing. Data backup and recovery ensures that information and resources are preserved even if incidents were to happen. If data is temporarily lost, it can be restored which will ensure data availability. Redundant infrastructure involves duplicate servers, network connections, and other critical components. If one component were to fail, the duplicate/redundant component could take over. This prevents the hardware from failing and ensures availability. Employee training is vital to prevent accidental disruptions due to human error. Employees will learn safe cybersecurity practices and how to be aware of phishing scams. As people, we make mistakes but this employee training will ensure availability by reducing human error. Regular testing will also be conducted to identify vulnerabilities in the system so that improvements can be made. This includes penetration testing to see how resilient the system is to cyberattacks. This will ensure availability by making it more difficult for hackers to break into the system.