What is a "Security Breach"?

A "Security Breach" is defined as an incident that results in unauthorized access, use, disclosure, or destruction of sensitive information. This definition encompasses various scenarios where the confidentiality, integrity, or availability of data is compromised. A security breach can occur in different forms, including but not limited to hacking, insider threats, or accidental exposure of sensitive data.

The reason this choice stands out is because it captures the essence of what a security breach entails: it specifically highlights the unauthorized aspects that lead to a violation of information security principles. In contrast to the other options, which either narrow the focus or misinterpret the nature of a security breach, this definition aligns well with recognized standards in information security, where protecting sensitive information is paramount.

The other choices do not encapsulate the full scope of a security breach. For instance, a failure in a system’s security protocols refers to vulnerabilities or weaknesses in defense mechanisms, which might not necessarily result in a breach unless exploited. Similarly, data loss without unauthorized access (as indicated in one of the alternatives) does not constitute a breach, as the integrity of sensitive information remains intact, just lost. Lastly, a focus solely on physical security measures ignores the broader range of potential breaches that can occur through digital means, which