For a couple of years, I have been a DFIR investigator.
Digital Forensics and Incident Response (DFIR) analyst collects, analyzes, and reports evidence related to malicious computer activity. This profession involves analyzing, extracting, and reporting digital information from various sources.
Forensic investigations are performed to determine what happened and who is responsible. Forensic investigators use skills in several disciplines, including computer forensics, digital forensics, and incident response, to gather evidence and identify the perpetrator of the crime.