Incident Handling and Response

An organised process for dealing with security incidents, breaches, and online threats is called incident response (IR). It involves logging, recording, and resolving incidents. It notes the incident, when it occurred, its impact, and its cause. A well-defined incident response plan (IRP) enables you to quickly recognise, minimise harm, and lower the cost of a cyber-attack while identifying and resolving the root cause to stop such assaults in the future.

Step 1: Preparation

It includes performing an audit of resources and assets to determine the purpose of security. It also includes building an IR team, defining incident readiness procedures, gathering required tools, and training the employees to secure their systems and accounts.

Step 2: Incident Recording and Assignment

The initial reporting and recording of the incident take place in this phase. This phase handles identifying an incident and defining proper incident communication plans.

Step 3: Incident Triage

The discovered security incidents are examined, verified, classified, and prioritised during this step. The team further analyzes the compromised device to find incident details such as the type of attack, its severity, target, impact, method of propagation, and any vulnerabilities s it exploited.

Step 4: Notification

The team informs various stakeholders, including management, third-party vendors, and clients, about the identified incident.

Step 5: Containment

By limiting infection's ability to spread to other organisational assets, this phase serves to limit further harm.

Step 6: Evidence Gathering and Forensics Analysis

The team gather all possible evidence and submits it to the forensics department for investigation. Analysis reveals details such as the method of the attack, vulnerabilities exploited, security mechanisms averted, network devices infected, and applications compromised.

Step 7: Eradication

To stop future occurrences of this type of incident, the team removes or eliminates the incident's primary cause and closes all attack vectors.

Step 8: Recovery

The team recovers the impacted systems, services, resources, and data through recovery after removing the causes of the incidents. The team ensures that the incident causes no disruption to the services or business of the organization.

Step 9: Post-Incident Activities

Conducting a final review is an important step in the IH&R process. The security incident requires additional review and analysis before closing the matter. This includes incident documentation, incident impact assessment, reviewing f and revising policies, closing the investigation, and incident disclosure.

All in all, this process involves defining user policies, developing protocols, building incident response teams, auditing organizational assets, planning incident response procedures, obtaining management approval, incident reporting, prioritization, and managing response. It also includes establishing proper communication between the individuals responding to an incident and guiding them to detect, analyze contain, recover, and prevent incidents.

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