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Individual Quiz Question

What does DFIR stand for?

Data Flow and Information Recovery

Digital Forensics and Incident Response

Defense Framework for Information Risk

Distributed Firewall and Intrusion Reporting

Correct Answer: Digital Forensics and Incident Response

DFIR stands for Digital Forensics and Incident Response, representing the combined discipline that focuses on investigating cybersecurity incidents and collecting digital evidence to understand attack methods, assess damage, and support legal proceedings when necessary.

DFIR combines two complementary cybersecurity disciplines that work together to provide comprehensive incident investigation capabilities. Digital forensics provides the technical expertise to preserve and analyze digital evidence, while incident response provides the operational framework for managing security incidents effectively.

Digital Forensics components include:

Evidence preservation: Maintaining the integrity and chain of custody of digital evidence
Data recovery: Retrieving deleted or hidden files and system artifacts
Timeline analysis: Reconstructing the sequence of events during an incident
Malware analysis: Examining malicious software to understand attack methods
Network forensics: Analyzing network traffic and communication patterns

Incident Response elements encompass:

Incident detection: Identifying and confirming security incidents
Containment: Limiting the spread and impact of security incidents
Eradication: Removing threats and vulnerabilities from affected systems
Recovery: Restoring systems and services to normal operations
Lessons learned: Improving security posture based on incident findings

DFIR methodologies and frameworks:

NIST Cybersecurity Framework incident response guidelines
SANS incident response methodology
ISO 27035 incident management standards
Legal and regulatory compliance requirements for evidence handling

DFIR tools and technologies:

Forensic imaging and analysis software
Memory analysis and malware sandboxes
Network packet capture and analysis tools
Timeline analysis and correlation platforms
Evidence management and case tracking systems

DFIR capabilities are essential for organizations to understand the full scope of security incidents, support legal actions when necessary, and improve security controls based on actual attack patterns and techniques.