Access to sensitive or restricted information is controlled. This describes which of the key communications and information systems principles?

The principle of security is fundamental to the protection of sensitive or restricted information. It involves implementing measures and protocols that restrict access to authorized individuals only, ensuring that confidential data is safeguarded against unauthorized disclosure or access. Security encompasses various practices, including user authentication, encryption, and access controls, to maintain the integrity and confidentiality of the information.

By having systematic security measures in place, organizations can effectively mitigate risks associated with data breaches and unauthorized access, thus fostering trust and compliance with legal and regulatory requirements. The protection of sensitive information is crucial in emergency management, where timely access to accurate and secure information can significantly impact decision-making and operational effectiveness during crises.

In contrast, other principles like reliability pertain to system performance and availability, scalability focuses on the ability to expand systems capacity, and integration involves the seamless operation between different systems and interfaces. Each of these principles plays a role in the overall functionality of information systems, but security specifically addresses the safeguarding of sensitive information.