- What is incident response?
Incident response is the process of responding to, managing, and mitigating cyber security incidents. The purpose of incident response is to limit the damage and disruption of cyber-attacks and, where necessary, restore operations as quickly as possible.
- What is a security incident?
A cyber incident or cyber security incident is an event that could lead to a compromise of confidentiality, integrity or availability. In practical terms, this could include an unauthorised data breach, unlawful data processing, the altering of data without consent, or a malicious attempt to disruption or denial of service.
- How should you respond to a security incident?
When a security incident occurs, it is important not to let panic set in. Effective incident response requires a clear and robust incident response plan which outlines the actions key stakeholders need to take in a variety of scenarios.
- What is an incident response plan?
An incident response plan is a set of actions and procedures that outlines an organisation’s response to security incidents. An incident response plan is designed to facilitate timely and effective incident mitigation by making it clear what steps should be taken and by whom.
- What should an incident response plan include?
An incident response plan should include guidance for:
- the assignment of responsibilities between responders
- the outlining of technical protocols and escalation points
- planning for resource gathering and documentation
- establishment of communications and notification procedures
- determining a review and testing schedule
- What is a CSIRT?
A Computer Security Incident Response Team, or CSIRT, is a group of experts responsible for responding to security incidents. A CSIRT will include the security, IT and digital forensics staff responsible for other cyber security functions, but may also include PR, HR or legal personnel to help with breach reporting and notification requirements.
- Why is an incident response plan important?
As the National Cyber Security Centre (NCSC) states:
“Incident response (IR) is complicated by two factors. Firstly, no two incidents are ever the same. Secondly, all responses require people, process and technical elements to work together in order to be successful.
Planning your incident response ahead of time is essential. This will be a major determining factor in the final outcome of any real world incident.”
Your incident response plan is your strategic roadmap outlining the steps your organisation should take in the event of different types of attacks. It ensures that you are able to take fast, decisive action to defend your organisation’s reputation and financial well-being.
Set out clearly and executed in a timely way, it can make the difference between responding effectively to an incident and experiencing significant organisational disruption. An incident response plan also communicates to stakeholders and regulators that your organisation is fully committed to addressing new and emerging threats.
- What are the six steps of incident response?
The six steps of incident response are as follows:
- Preparation – incident response planning and process creation
- Identification – information gathering and incident analysis
- Containment – patching and damage limitation
- Eradication – threat removal and mitigation
- Recovery – returning systems to full operation
- Learnings – identification of improvements, further testing
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