The first step in a standard digital forensic process iscollectionbecause all later work depends on obtaining data in a way that preserves its integrity and evidentiary value. Collection involves identifying potential sources of relevant evidence and then acquiring it using controlled, repeatable methods. Typical sources include endpoint disk images, memory captures, mobile device extractions, server and application logs, cloud audit trails, email records, firewall and proxy logs, and authentication events. During collection, forensic guidance emphasizes maintaining a documentedchain of custody, recording who handled the evidence, when it was acquired, how it was transported and stored, and what tools and settings were used. This documentation supports accountability and helps ensure evidence is admissible and defensible if used in disciplinary actions, regulatory inquiries, or legal proceedings.
Collection also includes steps to prevent evidence contamination or loss. Investigators may isolate systems to stop further changes, capture volatile data such as RAM before shutdown, use write blockers when imaging storage media, verify acquisitions with cryptographic hashes, and securely store originals while performing analysis on validated copies. Only after evidence is collected and preserved do teams move intoexaminationandanalysis, where artifacts are filtered, parsed, correlated, and interpreted to reconstruct timelines and determine cause and scope. Reporting comes later to communicate findings and support remediation.
