Course Content
Module 1: Introduction to Cybersecurity Incident Response
This module highlights the significance of incident response, explores various cybersecurity incidents, and introduces the critical roles within an effective Incident Response Team (IRT).
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Module 2: Incident Response Lifecycle
This module covers the phases of the incident response lifecycle, from preparation and identification to containment, eradication, recovery, and lessons learned, ensuring a structured approach to handling cybersecurity incidents.
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Module 3: Preparation for Incident Response
This module focuses on preparing for cybersecurity incidents, including establishing policies, creating an incident response plan, setting up tools and technologies, and training response teams for effective readiness.
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Module 4: Identifying Cybersecurity Incidents
This module focuses on recognizing cybersecurity incidents, understanding indicators of compromise (IoCs), and utilizing monitoring systems, including SIEM, for effective incident detection and timely reporting.
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Module 5: Effective Incident Containment
This module focuses on strategies for effectively containing cybersecurity incidents, including isolating affected systems, maintaining communication, and preventing further escalation to minimize damage and impact.
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Module 6: Eradication of Threats
This module focuses on identifying the root cause of cybersecurity incidents, removing threats such as malware, securing configurations, and ensuring thorough verification of threat elimination to restore system integrity.
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Module 7: Recovery and Post-Incident Steps
This module focuses on restoring affected systems and services after an incident, ensuring system integrity, validating recovery efforts, and rebuilding confidence with stakeholders through effective post-incident procedures.
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Module 8: Lessons Learned and Continuous Improvement
This module focuses on conducting post-incident reviews, updating response plans, enhancing security measures, and leveraging lessons learned to continuously improve incident response strategies and organizational resilience.
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Module 9: Legal, Compliance, and Reporting
This module explains the legal obligations and compliance requirements during incident response, including reporting standards, communicating with authorities, and managing public and media interactions during a cybersecurity incident.
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Module 11: Incident Response in Different Environments
This module explores incident response strategies for different environments, including on-premises systems, cloud platforms, and mobile devices, with a focus on adapting techniques for specific threats like ransomware.
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Module 12: Simulating and Testing Incident Response
This module focuses on testing and simulating incident response through tabletop exercises, red team vs. blue team simulations, and penetration testing to evaluate and improve response readiness and effectiveness.
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Cybersecurity Incident Response Basics
About Lesson

Immediate Containment Actions

The first steps of containment involve taking swift actions to stop the spread of the incident and limit its effects. Depending on the nature of the attack, the specific actions may vary, but they generally include:

 

Disconnecting Affected Systems: The quickest way to limit an incident’s impact is by isolating the affected systems. This can be done by disconnecting compromised machines from the network or shutting down specific services. Disconnecting systems can stop the attack from spreading to other systems or services.

 

Blocking Malicious Traffic: In cases of malware or ransomware attacks, blocking malicious traffic is essential to prevent further infection. This can include blocking suspicious IP addresses, disabling communication channels used by the attackers, or blocking specific ports or protocols.

 

Isolating Affected Accounts: If user accounts are compromised, the first containment action is to disable or lock these accounts to prevent further malicious activity. In cases where privileged accounts are involved, additional measures such as resetting passwords may be necessary.

 

Limiting Administrative Access: If the attack involves privilege escalation or the use of admin credentials, limiting administrative access to critical systems can help prevent further damage. It may include revoking remote access or restricting permissions for specific users or groups.

 

Segmenting the Network: Network segmentation involves creating isolated sub-networks, which can prevent the attack from spreading. Critical infrastructure, such as databases and application servers, may be isolated from the rest of the network to protect sensitive data.

 

These immediate containment actions help slow down the attack, buy time for further investigation, and prevent additional systems from being compromised.