DFIR, or Digital Forensics and Incident Response, is a specialized field within cybersecurity focused on investigating and addressing cyberattacks and security breaches. Digital forensics involves collecting, preserving, and analyzing digital evidence from computers, networks, or devices to understand how an incident occurred and who was responsible. Incident response refers to the structured approach organizations use to detect, contain, and recover from security incidents. Together, DFIR helps organizations minimize damage, restore operations, and prevent future attacks by combining investigative techniques with rapid response strategies.