Nowadays, there is an increased risk of cyber attacks with colossal impact on business continuity. A robust IR plan will reduce the damage and hasten the recovery process from such attacks. Incident response is all about responding to breaches. It is a systematic approach to detecting, containing, and recovering from a security incident. With an effective cyber incident response plan, the business may reduce the damage occurring due to the attack and put itself through crisis management to recover as early as possible.
What is cyber incident response?
Cyber incident response is an organization’s systematic approach to managing and containing a security breach or cyber attack. It is the process of detecting the threat, containing it, and eradicating it while limiting its impact on the organization. Its main objective is to minimize the time taken toward recovery from an incident, reduce the impact on operational activities, and protect sensitive information.
Importance of cyber incident planning
Proper cyber incident planning helps to protect the integrity, availability, and confidentiality of the information systems. A well-developed incident response plan will ensure the organization is better equipped with proper handling should the breach occur. Without an IR plan, businesses will suffer more financial losses, reputational damage, operational downtime, and legal repercussions. Cyber threats are increasingly evolving, and being proactive toward incident planning ensures resiliency.
6 Phases of Incident Response Framework
Proper cyber incident planning helps to protect the integrity, availability, and confidentiality of the information systems. A well-developed cyber incident response plan will ensure the organization is better equipped with proper handling should the breach occur. Without an IR plan, businesses will suffer more financial losses, reputational damage, operational downtime, and legal repercussions. Cyber threats are increasingly evolving, and being proactive toward incident planning ensures resiliency.
- Planning
The preparation phase is usually the foundation for every good cyber incident response plan. At this point, various policies are developed, roles and responsibilities are set, the incident response team is assembled, and playbooks for different incident types are developed. Organizations should regularly set up security controls and monitoring and detecting systems to educate employees about security awareness. Preparation will minimize the risk of incidents and allow quicker responses and coordination in cases of incidents.
- Identification
This is the stage where the potential security incident is identified and classified. The organization should have mechanisms for constant network monitoring, anomaly detection, and alert generation. During this step, incident response teams evaluate the impact and extent of an event as well as whether it counts as a security incident. Identifying the threat well in advance may permit its containment and mitigation well in time with minimal potential damage.
- Containment
This is the stage after the identification of the cyber threat. It tries to reduce the proliferation of the attack and its impact. Containment strategies are based on the criticality of the incident. Short-term containment may involve the isolation of affected systems, while long-term containment involves the process of getting the systems back to normal. The organization should know whether the affected systems are to be disengaged from the network or whether accessibility to the exact needs to be restricted to prevent further damage.
- Eradication
After containment, the next objective is eradicating the threat from the organization’s systems. It involves removing malware, closing the security vulnerabilities, and eradicating any trace of the attacker in the network. This phase may involve deliberate and careful analysis to ensure that identification and remediation of the incident’s root cause occur. Eradication ensures that the systems are cleared from the attackers’ presence and bars further compromise.
- Recovery
Restorative work in the recovery phase focuses on how normal operations can be resumed once the incident has been completely fixed. Recovery efforts involve restoring data from backups, testing systems to ensure they are working as intended, and ensuring that no other threats remain. At this stage, organizations should closely monitor any affected systems for further malicious activity. Full recovery may also include re-configuring security controls and deep assessments to avoid incidents in the future.
- Lessons Learnt
Lessons learned are the final phase, one of the most critical steps in the incident response lifecycle. This involves retrospectively analyzing the incident to identify what went well and what did not. The incident response teams will carry out post-incident reviews, document the response process, and give feedback on how to improve the organization’s security posture. Lessons learned will help refine the IR plan to ensure an organization is better prepared for future incidents.
How can an effective cyber incident response and recovery plan be built?
Building a successful cyber incident response and recovery plan involves several things, as highlighted below.
Conclusion
Good cyber incident response plan involves more than reacting to indicators of attack; it involves proactive strategies to keep your organization prepared, detect an incident as quickly as possible, and respond to it efficiently. A proactive approach in line with the six phases of the incident response framework, coupled with an effective incident response and recovery plan, should allow any organization to manage the consequences of risks arising due to cyber incidents and to recover from them efficiently.
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