[Introduction to Incident Handling and Response] Bob, an incident responder at CyberTech Solutions, is investigating a cybercrime attack occurred in…

The digital forensic investigation process is typically divided into distinct phases. The scenario describes Bob performing analysis on evidence that has already been acquired and preserved. This activity—examining data to identify the source of an attack, understand the methods used, and identify the perpetrator—is the core of the Investigation phase. This phase encompasses the technical procedures of evidence collection, examination, and analysis, which directly follows the initial preparation (Pre-investigation) and precedes the final reporting (Post-investigation).

A. Vulnerability assessment phase: This is a proactive security practice to identify and mitigate potential weaknesses before an incident occurs, not a phase of a reactive forensic investigation.
B. Post-investigation phase: This phase occurs after the analysis is complete and primarily involves documenting findings, creating the final report, and providing expert testimony.
C. Pre-investigation phase: This phase involves all preparatory tasks performed before handling evidence, such as obtaining authorization, planning the investigation strategy, and assembling the toolkit.

1. National Institute of Standards and Technology (NIST). (2006). Guide to Integrating Forensic Techniques into Incident Response (Special Publication 800-86). Section 2.3, "The Forensic Process," outlines the core phases as Collection, Examination, Analysis, and Reporting. Bob's actions of "performing analysis on acquired evidentiary data" fall directly into the Examination and Analysis phases, which are the central components of the overall Investigation phase.

2. Valjarevic, A., & Venter, H. S. (2012). A comprehensive digital forensic investigation model. In 2012 Information Security for South Africa, IEEE. This academic paper discusses various forensic models, which consistently place evidence analysis as a central part of the main investigative stage, distinct from pre-investigation (preparation) and post-investigation (reporting). (DOI: https://doi.org/10.1109/ISSA.2012.6320453)

3. University of Washington. (n.d.). Digital Forensics - CSE 490F. Courseware, Paul G. Allen School of Computer Science & Engineering. The course syllabus outlines the "Digital Forensics Process," which includes phases such as "Acquisition/Preservation" and "Analysis." Bob has completed acquisition and is now in the Analysis stage, which is part of the broader investigation. (Available via UW CSE course archives).