A security incident involves which of the following?

A security incident is defined as any violation or attempted violation of an established security policy. This encompasses a wide range of actions that compromise or threaten the integrity, confidentiality, or availability of information or information systems.

In this context, the correct answer focuses on actions that directly breach security protocols. Such violations can include unauthorized access attempts, data breaches, or any actions posed by users or external entities that can endanger the security framework in place.

The other options, while potentially troublesome, fall short of the broader implications associated with security incidents. A minor error in data entry, for example, may not necessarily impact security policies directly. An accidental deletion of files could be significant but doesn't inherently imply a security violation. Furthermore, a request for data access alone does not constitute a security incident unless accompanied by unauthorized intentions or potential breaches of policy. Therefore, the selection that relates to explicit violations of security policy accurately aligns with the definition of a security incident.