Incident Response
Incident Response
A cybersecurity function focused on detecting, managing, and mitigating adversarial attacks while minimizing impact and recovery time. Coupled with Digital Forensics: Investigates incidents to determine root causes and gather evidence. its Goals are Contain malware infections. Identify and remediate vulnerabilities. Coordinate technical and non-technical personnel.
Events are An observed occurrence (e.g., user login, email sent, antivirus blocking malware).while Incidents are A security policy violation with negative impact (e.g., ransomware, data exfiltration, DoS).
incident Response Process consists of six phases:
- Establish IR procedures, policies, and tools.
- Train personnel, define roles, and create IR plans/playbooks.
- Detect and confirm security incidents.
- Use monitoring tools (SIEM, EDR, logs).
- Determine the extent of the incident (affected systems, data at risk, impact).
- Isolate affected systems to prevent spread.
- Preserve forensic evidence.
- Remove malware, backdoors, and adversarial artifacts.
- Restore systems to normal operations.
- Conduct a post-incident review, update IR plans, and improve defenses.