cyber security incident response plan example pdf

Enterprise Cyber Security Incident Response Protocol

Document Control

• Document ID: [__________]
• Version: [__________]
• Effective Date: [__________]
• Review Cycle: [Annual / Bi-Annual]

1. Purpose & Scope

This document establishes the standardized framework for detecting, analyzing, and mitigating security threats at [Company Name]. This protocol applies to all information systems, network infrastructure, and personnel associated with [Company Name].

2. Prerequisites

• Access: Administrative credentials for [SIEM/Log Management Platform], [Endpoint Detection System], and [Identity Provider].
• Communication: Access to [Secure Out-of-Band Communication Channel, e.g., Signal/Encrypted Slack] and an offline contact list.
• Documentation: Access to the [Incident Log Repository, e.g., Jira/Confluence/Secure Drive].
• Legal/Compliance: Contact information for [Legal Counsel] and [Cyber Insurance Provider].

3. Roles & Responsibilities (RACI)

4. Step-by-Step Procedure

Phase 1: Preparation & Detection

• Monitor [SIEM/Dashboard] for anomalous alerts.
• Verify if the alert is a false positive or a true security event.
• Log initial findings in the [Incident Tracking ID: __________].

Phase 2: Containment

• Isolate affected systems from the [Network Segment Name] to prevent lateral movement.
• Revoke compromised credentials for [User/Service Account Name].
• Capture volatile memory (RAM) and disk images for forensic analysis.

Phase 3: Eradication

• Identify the root cause (e.g., malware, unauthorized access, misconfiguration).
• Patch vulnerabilities or remove malicious artifacts.
• Perform a full system scan using [Antivirus/EDR Tool].

Phase 4: Recovery

• Restore systems from [Backup Source/Date].
• Monitor affected systems for 48 hours for recurring indicators of compromise (IoCs).
• Reset all administrative passwords and rotate API keys.

Phase 5: Post-Incident Activity

• Conduct a "Lessons Learned" meeting within [Number] days.
• Update [Security Policy Name] to prevent recurrence.
• File final report with [Compliance/Regulatory Body].

5. Quality Assurance & Pro-Tips

• Pro-Tip: Always maintain an "Out-of-Band" communication channel. If your email/Slack is compromised, you need a secondary way to coordinate.
• Common Pitfall: Jumping to "Eradication" before "Containment." Always stop the bleeding before you perform surgery.
• QA Check: Ensure all timestamps in the incident log are synchronized to UTC to avoid confusion during forensic reconstruction.

6. FAQs

Q: When should I notify external stakeholders? A: Notifications must be cleared by [Legal Counsel] or [Executive Leadership] prior to release. Do not disclose details until the scope of the breach is confirmed.

Q: What if I am unsure if an event is a "major" incident? A: Err on the side of caution. Initiate the "Low-Level" response protocol and escalate to the Incident Commander if the scope expands beyond a single workstation.

Q: Who has the authority to shut down the network? A: The [Incident Commander] has the sole authority to authorize a total network shutdown to prevent data exfiltration.