Incident response assessment is essential for fortifying a company’s cyberdefenses against future attacks. You may be better prepared to manage all sorts of attacks, safeguard sensitive information, and limit interruptions to business sustainability by undertaking incident response plan testing. Incident response can also help you achieve CMMC security compliance. 

The robustness of an incident response program is determined by the careful refinement of incident management testing strategies and practices based on your security requirements.

The Incident Response Phases

Because security threats are unpredictable, incident response is an essential component of every organization’s cybersecurity approach. To evaluate the success of incident management plans, an efficient and well-managed incident response system necessitates periodic incident response testing and exercises.

A typical incident management strategy is divided into seven phases designed to streamline event management.

Phase 1: Planning and Preparation

When developing an incident response strategy, strategy and preparedness are vital to enhancing overall event management effectiveness.

  • The incident response preplanning phase will focus on:
  • Allocating roles and duties for incident handling to specified individuals
  • Developing incident response protocols with a clear line of command
  • Creating an escalation strategy for elevated, increased occurrences
  • Identifying your IT infrastructure’s most vital assets

Phase 2: Detection of Threats

Identifying and detecting possible cybersecurity risks is the next step in incident response. Here, you may create procedures to identify and detect the particular hazards that your firm faces.

The threat detection stage of incident response involves a mechanism for categorizing observed threats based on:

  • Level of danger 
  • Asset in danger
  • Threat classification 
  • The source of the threat 

Phase 3: Threat Containment

Once your company’s cybersecurity dangers have been recognized, IT professionals must mitigate them.

The third step of the incident response contains threats by isolating them (usually using an antivirus product) to prevent the virus from affecting your whole IT infrastructure.

Suppose the vulnerability is too dangerous or complex for antivirus software to isolate. It must be upgraded to an authorized IT security squad so that proper mitigation steps may be implemented.

Phase 4:  Incident Investigation

A root source analysis must be performed during threat discovery and containment to determine the threat origin, and better comprehend the circumstances around the threat incidence. The fourth phase of incident response is usually devoted to comprehension:

The form of a cybersecurity incident, with a particular emphasis on:

  • What systems were impacted?
  • Impact of a possible threat
  • Future danger potential
  • The threat’s origin and the attack vector employed
  • The chronology of the security event for the development of threat intelligence

Phase 5: Threat Elimination

Most simple dangers are eliminated by antivirus or malware detection software. Following the danger analysis in process #5, it is vital to eliminate any risks to your information security. Generally, the elimination stage of incident response entails:

  • removing threats-affected assets
  • Patch deployment to address vulnerabilities
  • Transferring intact IT assets to new systems or settings

It is vital to remove complex threats from impacted assets as soon as possible to prevent any unplanned threat escalation. Incident response assessment will improve threat intelligence, analysis, and elimination.

Phase 6: System Recovery 

The recovery and rehabilitation phase of incident management aims to return IT resources to their original condition while maintaining operational integrity and business continuity.

System restoration will change depending on the following factors:

  • The number of properties or systems that have been impacted
  • Assets or systems that have been impacted
  • The Characteristics of Security Threats

As with the earlier stages, incident response assessment is critical to increasing the efficacy of system restoration and guaranteeing that your resources are fully operational as soon as feasible. It is also required under CMMC regulation.

Phase 7: Assessment and follow-up 

The last stage of incident response is continual testing of assets throughout your business to confirm that the problem has been completely controlled. It is vital to regularly test compromised assets or processes to detect any potential post-incident abnormalities.

The testing and follow-up phase can also be utilized to gather threat intelligence that will be used to facilitate better incident response assessment and exercises.

You may effectively improve the incident response plan assessment to your unique security requirements if you comprehend the phases of the incident response.