Podcast
Questions and Answers
What aspect is considered the most critical component of an Incident Response Plan?
What aspect is considered the most critical component of an Incident Response Plan?
Which phase of the General Incident Response Plan focuses on ensuring no further damage occurs?
Which phase of the General Incident Response Plan focuses on ensuring no further damage occurs?
Which type of incident response team is best suited for an organization with geographically widespread operations?
Which type of incident response team is best suited for an organization with geographically widespread operations?
What is an observable occurrence that does not always pose a threat termed as?
What is an observable occurrence that does not always pose a threat termed as?
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In the context of incident response, what does the 'Learning' phase aim to achieve?
In the context of incident response, what does the 'Learning' phase aim to achieve?
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What does 'Mean Time to Acknowledge' measure in incident response metrics?
What does 'Mean Time to Acknowledge' measure in incident response metrics?
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Which of the following is NOT a category of losses usually covered by cyber insurance policies?
Which of the following is NOT a category of losses usually covered by cyber insurance policies?
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What is the primary purpose of performing simulations or tabletop exercises on an incident response plan?
What is the primary purpose of performing simulations or tabletop exercises on an incident response plan?
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Which of the following metrics does NOT measure the time related to incident response?
Which of the following metrics does NOT measure the time related to incident response?
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In the context of incident response, what does 'Mean Time to Contain' refer to?
In the context of incident response, what does 'Mean Time to Contain' refer to?
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Study Notes
Incident Response Plan (IRP)
- Detailed set of procedures, personnel, and information to detect, respond to, and limit consequences of cyberattacks.
- Human capital is the most crucial aspect of an effective IRP.
Incident Response Timeline
- Visual representation (often a Gantt chart) of the IRP, showing the stages from incident occurrence to resolution and return to normal operations.
NIST Response Team Models
- Centralized: Single team, best for smaller organizations.
- Distributed: Multiple teams, suitable for geographically dispersed organizations.
- Coordinating: Secondary function, responsible for deploying teams to resolve incidents in specific departments.
Events vs. Incidents
- Event: Observable occurrence, not necessarily a threat.
- Adverse Event: Intentional or unintentional event with negative consequences (e.g., system crashes, floods, unauthorized access).
- Computer Security Incident: Adverse event related to computer security and driven by malicious intent.
General Incident Response Plan (PDCERRL)
- Preparation: Assembling personnel, tools, and processes.
- Detection: Recognizing deviations from normal operations.
- Containment: Preventing further damage.
- Eradication: Removing threats and restoring systems.
- Reporting: Communication.
- Recovery: Returning to normal IT operations.
- Learning: Improving future responses.
Frameworks Created by Other Organizations
- SANS
- NIST
- ISO
- ITIL
- US-CERT
- PCI-DSS
Testing IRP Plans
- Simulations: Hypothetical scenarios to test procedures.
- IRP Metrics: Key performance indicators (KPIs) to track effectiveness.
- Post-incident review: Analyzing the response.
- Periodic audits: Regular checks on the plan.
- Continuous monitoring: Ongoing surveillance.
Simulating IRPs (Table Top Exercises)
- Annual testing: Evaluating plan effectiveness and accuracy in handling hypothetical situations.
IRP Metrics
- Mean Time to Detect (MTTD): Time to identify an incident.
- Mean Time to Acknowledge (MTTA): Time to recognize an incident as a threat.
- Mean Time to Contain (MTTC): Time to limit further damage.
- Mean Time to Repair (MTTR): Time to fully fix the issue.
- Mean Time Between Failures (MTBF): Tracking consecutive incident occurrences.
- System Availability or Downtime: Measures system stability.
- Service Level Agreement (SLA) Compliance: Evaluating adherence to performance standards.
Insurable Losses in Cyberattacks
- Business Interruption Losses: Lost revenue during disruption.
- Cyber Extortion Losses: Ransom payments and associated expenses.
- Incident Response Costs: Expenses incurred during the response phase.
- Information/Identity Theft Costs: Legal and replacement expenses.
- Reputation Damage: Cost of damage to a company's image.
- Replacement Costs for Information Systems: Replacing systems damaged in a breach.
- Litigation and Attorney Fees: Costs associated with legal proceedings.
Cyber Extortion Losses
- Ransom payments: Direct payments to attackers.
- Attorney fees: Legal expenses to navigate negotiations and legal issues.
- Negotiation fees: Costs associated with dealing with attackers.
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Description
This quiz covers the essential elements of an Incident Response Plan (IRP), including procedures, timelines, and models. Understand the differences between events and incidents in the cybersecurity context. Test your knowledge on effective incident management strategies.
