How should a security incident be categorized for response?

How should a security incident be categorized for response?

• A. By severity (minor/moderate/major/critical) and impact
• B. By time of day
• C. By location only
• D. By cost

Answer: (A)

Classifying security incidents by severity and potential impact is essential for effective response. This approach drives triage, prioritization, and the activation of the appropriate response playbook, ensuring the team acts quickly and with the right resources. Severity conveys urgency and scale—how fast action is needed and how many systems or users might be affected—while impact describes the potential harm to operations, assets, and people, including effects on confidentiality, integrity, and availability. Together, they guide containment, eradication, recovery steps, and how and when to communicate with stakeholders and regulators. Relying on time of day or location alone misses the real danger and business risk, and cost alone doesn’t capture actual risk or urgency. For example, a warning that touches a single workstation may be low severity, whereas a breach that disrupts a core service across multiple departments is high severity and demands immediate, broad containment.

Classifying security incidents by severity and potential impact is essential for effective response. This approach drives triage, prioritization, and the activation of the appropriate response playbook, ensuring the team acts quickly and with the right resources. Severity conveys urgency and scale—how fast action is needed and how many systems or users might be affected—while impact describes the potential harm to operations, assets, and people, including effects on confidentiality, integrity, and availability. Together, they guide containment, eradication, recovery steps, and how and when to communicate with stakeholders and regulators. Relying on time of day or location alone misses the real danger and business risk, and cost alone doesn’t capture actual risk or urgency. For example, a warning that touches a single workstation may be low severity, whereas a breach that disrupts a core service across multiple departments is high severity and demands immediate, broad containment.