What is a breach of security?

A breach of security refers to an incident where unauthorized access to a property or information occurs. This can involve intruders gaining access to secured areas, systems, or sensitive data that they are not permitted to access. The core aspect of this definition focuses on the violation of security protocols intended to protect assets and sensitive information, making it a significant concern in security management.

The other scenarios presented, while related to security or procedural issues, do not fully encapsulate what constitutes a breach. For instance, an event where authorized personnel fail to follow procedures relates more to compliance and procedural integrity rather than direct unauthorized access. Similarly, an improperly activated alarm system is more of a technical malfunction or error rather than a breach of security itself. A minor incident involving lost property does not typically involve unauthorized access or information compromise, thus making it less relevant in the context of security practices.