Scenario 7: InfoSec is a multinational corporation headquartered in Boston, MA, which provides professional electronics, gaming, and entertainment…

The scenario describes Bob's responsibilities as including "a thorough evaluation of the nature of an unexpected event...including the details on how the event happened and what or whom it might affect." This task is a fundamental activity of an Incident Response Team (IRT). According to the information security incident management lifecycle, the assessment and analysis of an event to determine its scope, nature, and impact are core functions performed by the IRT. While Bob also performs a security architecture task (deploying a screened subnet), his described role in evaluating active events places him squarely within the incident response function, which is distinct from proactive architecture design or post-incident forensic evidence collection.

A. Security architecture team: While Bob deploys network architecture, this is a proactive design and implementation task. His responsibility for evaluating unexpected events is a reactive function, which is the primary mandate of an incident response team.
B. Forensics team: Bob's role is the initial evaluation and analysis of an event. The forensics team, represented by Anna, is responsible for the formal collection, preservation, and analysis of evidence for potential legal or disciplinary action, which is a distinct and subsequent activity.

1. ISO/IEC 27035-1:2016, Information technology — Security techniques — Information security incident management — Part 1: Principles of incident management. Section 7.3, "Assess and decide," outlines the process of assessing information security events to determine if they are incidents. This includes analyzing the event's nature and impact, which directly corresponds to Bob's described task as a member of an incident response team.

2. ISO/IEC 27001:2022, Information security, cybersecurity and privacy protection — Information security management systems — Requirements. Annex A, Control A.5.26, "Information security incident management response," requires organizations to respond to incidents, a process that inherently includes the analysis and evaluation activities assigned to Bob.

3. Kossakowski, K. P. (2003). Creating a Computer Security Incident Response Team: A Process for Getting Started (No. CMU/SEI-2003-TN-001). Carnegie-Mellon University, Software Engineering Institute. Section 4.2, "Defining the CSIRT's Services," lists "Incident Analysis" as a core reactive service. This service is described as determining the initial attack vector, scope, and impact of an incident, which aligns perfectly with Bob's responsibilities.