The current state of the world’s digital orientation demonstrates the increasing dependency on the cyber realm. From everyday interactions to business operations, the world lives and breathes online. However, this sheer reliance on the digital world also implies an incessant rise of threats lurking in the shadows—cyber threats. Categorically evident yet surprisingly subtle, these threats attempt to systematically dismantle the security layers to execute their covert objectives. Hence, highlighting the importance of the 'Incident response process in cyber security'. This blog aims to direct a spotlight to a comprehensive approach towards the cybersecurity Incident response process.
The 'Incident response process in cyber security' serves as a systematic approach to manage and control the consequences of a cyber attack or security breach. In essence, the aim is to limit the damage and reduce the recovery time and associated costs. An Incident response plan typically includes a clear delineation of what qualifies as an incident and articulate a defined process to discover, investigate, mitigate and recover from such situations.
Usually, the Incident response process comprises six key phases:
The preparation phase is all about readiness. In this phase, a layered defense strategy and an incident response team are set up. This team meticulously studies the organization's network to understand its normal behavior, making it easier to
The identification phase entails noticing the indication of an incident. Tools like intrusion detection systems, anomaly detectors, and log analysers are crucial at this stage. The goal is to recognize the breach as early as possible to limit potential damage.
During the containment phase, the objective is to constrain the incident to ensure it doesn't spread deeper into the network. Decisions like whether to take affected systems offline or leave them to continue operations are crucial in this phase while minimising damage to the systems and potential evidence.
In the eradication phase, the Incident response team eliminates all components of the incident – deleting malicious code, removing affected systems from the network, and improving defenses to prevent a recurrence. A thorough investigation precedes this action.
In the recovery phase, systems are restored and returned back to operations. This generally means by patching flaws and ensuring there's no beaconing or persistency that the threat actor left in place. It is done gradually to avoid any triggers that might exist within the system.
The final phase involves analyzing the Incident response process carried out and documenting everything for future references. The detailed analysis aids in improving the Incident response plan and prepares the team for potential future threats.
Behind every successful Incident response process in cyber security, there is a highly skilled Incident response Team. The team is usually composed of diverse members with different roles and responsibilities, such as graphic handlers, forensic analysts, network engineers, lawyers, and human resources. Such a wide-ranging team is crucial to ensure an all-encompassing, systematic response to the incident.
While responding to an incident is of utmost importance, it is equally crucial to adopt a proactive stance to anticipate and prepare for potential threats. Entities, whether individual or business, should incorporate practices such as routine security audits, vulnerability scanning, user awareness training, and regular updates to attack scenarios into their modus operandi.
the 'Incident response process in cyber security' functions as a significant cog in the broader wheel of cyber security architecture. It is not just a reactive measure, but a strategic method to manage potential cybersecurity threats. It takes into account a range of scenarios, from identifying potential threats to taking necessary actions post-incident. The groundwork lies in setting an efficient team, creating a robust process, and investing in training and tools. Remember that in the domain of cyber security, readiness is not merely a convenience, but an absolute necessity.