Cisco Cyber Security Exam 2025 – 400 Free Practice Questions to Pass the Exam

Connecting an infected USB device to a work laptop is classified as an internal incident because it typically involves the organization's internal environment. Internal incidents arise from actions or events that happen within the organization’s systems or infrastructure, which can include the careless or unintentional introduction of a security threat by an employee or an authorized user.

When an employee connects a potentially harmful USB device, it can bypass external network defenses and directly impact the company's internal systems. This action poses a risk to organizational security by potentially allowing malware or unauthorized access to sensitive information, which again reinforces the classification of the incident as internal.

The other classifications do not accurately capture the essence of the scenario. While it could be seen in a broader malicious context (as the USB device is infected), the focus on organizational systems clearly aligns it with internal incidents. Additionally, external incidents generally involve threats coming from outside the organization's network, and passive does not describe the active nature of connecting a potentially harmful device.