How is cybersecurity defined?

Cybersecurity is broadly defined as the practice of protecting systems, networks, and programs from digital attacks, which can lead to unauthorized access to sensitive information, data breaches, and destruction of systems. The core of cybersecurity encompasses the prevention and restoration of systems and information integrity, ensuring that data is safe from corruption and can be recovered if it is compromised.

In this context, the prevention aspect refers to the measures taken to safeguard systems against potential threats, while restoration pertains to the ability to recover data and restore systems following a security incident. This comprehensive approach is essential because it addresses both the proactive and reactive strategies necessary for maintaining cybersecurity.

Other options, while related to areas of security, do not encapsulate the full scope of cybersecurity. For instance, protection against unauthorized access to home networks focuses on a specific aspect rather than the overall field. Enhancing physical security in server rooms pertains more to physical security rather than the digital safeguarding of systems. Promoting safe online behavior is important for user awareness but does not predominantly address the technical and systemic elements of cybersecurity. Thus, the definition that centers on the prevention and restoration of systems and information integrity most accurately captures the essence of cybersecurity.