Which of the following best defines 'risk' in the context of aviation security?

In the context of aviation security, 'risk' is best defined as the chance of successful attacks. This definition encompasses the main concern of aviation security, which revolves around the potential for threats and vulnerabilities that could lead to unauthorized access, security breaches, or acts of terrorism within the aviation environment.

Understanding risk in this way highlights the need for comprehensive security measures aimed at mitigating the possibility of successful attacks against aircraft, passengers, and airport facilities. It emphasizes the importance of threat assessment, intelligence gathering, and proactive security protocols to enhance the overall safety of air travel.

The focus on the chance of successful attacks aligns with the primary goal of aviation security, which is to protect passengers, crew, and infrastructure from malicious acts. It encourages stakeholders to evaluate potential threats, their likelihood, and their potential consequences, ensuring that appropriate countermeasures are in place to reduce the overall risk.