Digital Forensics Incident Response (DFIR) is a field within cybersecurity that focuses on the identification, investigation and remediation of cyberattacks.
The two main components of DFIR are “Digital Forensics” and “Incident Response”. Examining system data, user activity and other digital evidence to determine if an attack is ongoing and who might be behind it is a comprehensive process that an organization will follow to prepare for a data breach, detect, contain and recover from that breach.
Due to the proliferation of endpoints and the increase of cybersecurity attacks in general, DFIR has become a central capability within the organization’s security strategy and threat hunting capabilities. The move to the cloud, as well as the acceleration of remote work, have further increased the need for organizations to protect against a wide range of threats across all networked devices.
Although DFIR has traditionally been a reactive security function, advanced tools and technologies such as artificial intelligence (AI) and machine learning (ML) have enabled some organizations to leverage DFIR effectiveness to influence and inform preventive measures. In such cases, DFIR can also be considered as a component of a proactive security strategy.
Digital forensics methodology provides the information and evidence necessary for the computer emergency response team (CERT) or computer security incident response team (CSIRT) to respond to a security incident.
Digital forensic examination includes File System, Memory (RAM), Network, Log Records examinations. In addition to helping the team respond to attacks, it also plays an important role in the full remediation process. Digital forensic also includes providing evidence to be presented to auditors or to support possible legal cases. In addition, the DFIR team’s analysis helps to shape and strengthen preventive security measures. This enables the organization to reduce overall risk and accelerate future response times.
Although digital forensics and incident response are seen as two separate functions, they are closely related to each other and are interdependent in some ways. Adopting an integrated approach to DFIR provides organizations with many important advantages.
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