Activate the Incident Response Team to address and manage the incident. The team members should be aware of their roles and responsibilities. Ensure that all team members are available and ready to respond.
Incident identification and validation
Identify and validate the incident to confirm if it is a security breach or an actual incident. Determine the impact and severity of the incident. Verify the accuracy of the incident report.
1
Unauthorized Access
2
Malware Infection
3
Data Breach
4
Denial of Service
5
Physical Security Incident
Verify scope and extent of incident
Determine the scope and extent of the incident. Identify the systems, networks, and data that are affected. Assess the potential impact on business operations and customer information.
1
File Servers
2
Database Servers
3
Email Servers
4
Web Servers
5
Application Servers
Incident categorization
Categorize the incident based on its severity, impact, and potential consequences. This helps in prioritizing the incident response and allocating resources accordingly.
1
Low
2
Medium
3
High
4
Critical
1
Loss of revenue
2
Damage to reputation
3
Legal implications
4
Operational disruptions
5
Customer data compromise
Approval: Incident category
Will be submitted for approval:
Incident categorization
Will be submitted
Establish Incident Response strategy
Develop a strategy to effectively respond to the incident. Define the objectives, roles, and responsibilities of the Incident Response Team. Determine the communication channels and escalation procedures.
1
Team Leader
2
Forensics Analyst
3
IT Administrator
4
Communication Specialist
5
Legal Advisor
1
Management
2
IT Director
3
Legal Department
4
Public Relations
5
Vendor Support
Initiate Incident Response plan
Implement the predefined Incident Response plan based on the established strategy. Ensure that all necessary tasks, resources, and tools are available. Begin executing the plan to contain and mitigate the incident.
Collect and document evidence
Collect and preserve all relevant evidence related to the incident. Document the chain of custody for each piece of evidence. This is crucial for investigation and legal purposes.
Isolate affected systems
Isolate the affected systems to prevent further damage or unauthorized access. Disconnect compromised systems from the network and disable any remote access. Implement necessary security measures to contain the incident.
Effort to mitigate damage
Take immediate actions to mitigate the damage caused by the incident. This may involve restoring data from backups, removing malware, patching vulnerabilities, or implementing temporary measures to restore functionality.
1
Restore from backups
2
Run malware scan
3
Patch security vulnerabilities
4
Implement temporary measures
5
Monitor system logs
Remediate vulnerabilities
Identify and address the vulnerabilities that led to the incident. This involves patching software, updating configurations, enhancing security controls, and conducting vulnerability assessments.
1
Outdated software
2
Weak passwords
3
Misconfigured firewall
4
Lack of encryption
5
Unsecured network
Approval: Remediation plan
Will be submitted for approval:
Effort to mitigate damage
Will be submitted
Remediate vulnerabilities
Will be submitted
Restore operations
Work towards restoring normal operations and services affected by the incident. Test the restored systems and conduct validation checks to ensure that the incident has been successfully resolved.
Post-Incident review
Conduct a post-incident review to evaluate the response and identify areas for improvement. Analyze the effectiveness of the Incident Response plan and make necessary adjustments.
Document lessons learned
Document the lessons learned from the incident and the response process. This helps in improving future incident response efforts and refining security practices.
Develop a plan for preventing future incidents
Develop a comprehensive plan to prevent similar incidents in the future. Identify and address the root causes of the incident. Implement security measures, policies, and procedures to mitigate potential risks.
Approval: Future prevention plan
Will be submitted for approval:
Post-Incident review
Will be submitted
Document lessons learned
Will be submitted
Develop a plan for preventing future incidents
Will be submitted
Update Incident Response plan based on feedback
Review the incident response plan based on the feedback and lessons learned. Update the plan to incorporate any necessary changes, improvements, or adjustments. Ensure that the plan remains effective and aligned with current security practices.
