When a cybersecurity incident occurs, decisions may need to be made quickly.
Which systems should be disconnected? Who needs to be contacted? Can employees continue working? What should customers be told? Are backups available, protected and ready to restore?
The middle of an incident is not the ideal time to begin answering those questions.
A cybersecurity incident-response plan gives an organization a documented process for identifying, managing and recovering from an incident. It helps employees, company leaders, IT personnel and outside partners understand their responsibilities before the pressure of an actual event.
Incident Response Is a Business Responsibility
Cybersecurity incidents are often treated as IT problems, but their effects can extend throughout an organization.
A cyberattack may interrupt operations, affect customer service, expose sensitive information, create financial losses and trigger legal, regulatory, contractual or insurance obligations. Decisions made during the response may involve company leadership, operations, finance, human resources, communications, legal counsel and outside technology partners.
An effective response plan should reflect the entire business, not only its technology.
The plan does not need to predict every possible incident. It should establish a structure that helps the organization evaluate what is happening, identify the right decision-makers and take coordinated action.
Assign Roles Before an Incident Occurs
An incident-response plan should clearly identify who is responsible for key decisions and actions.
Those responsibilities may include:
- Receiving and evaluating reports of suspicious activity
- Determining whether an incident has occurred
- Isolating affected systems
- Preserving information needed for an investigation
- Contacting cybersecurity, legal or insurance resources
- Communicating with employees
- Managing customer or public communications
- Coordinating recovery efforts
- Documenting actions and decisions
The plan should identify primary and backup contacts for each role. If one decision-maker is unavailable, the response should not come to a halt.
Contact information should also be available somewhere other than the organization’s primary network. A contact list stored only on an inaccessible system may not be useful during an outage or ransomware incident.
Identify Your Most Critical Systems
Not every system has the same importance to daily operations.
Businesses should identify the technology, information and services that are most critical to their work. These may include financial systems, customer records, communications platforms, production equipment, cloud applications or industry-specific systems.
The response plan should address questions such as:
- Which systems must be restored first?
- How long can the business operate without them?
- Which employees and vendors support those systems?
- What other systems depend on them?
- Is there an approved temporary process for continuing essential work?
- Where are the backups, and when were they last tested?
Prioritizing critical systems helps an organization make better recovery decisions and direct limited resources where they matter most.
Plan Communications in Advance
Cybersecurity incidents can create confusion both inside and outside an organization.
Employees may not know whether they should use their computers, access email, speak with customers or continue normal operations. Customers and business partners may have questions. Leadership may need accurate updates before making decisions.
A communications plan should establish:
- Who is authorized to communicate about an incident
- How employees will receive instructions if normal systems are unavailable
- Who will communicate with customers, vendors and partners
- When legal counsel, insurance providers or law enforcement should be contacted
- How communications and decisions will be documented
Organizations should also understand any notification requirements that may apply to their industry, contracts or the information they maintain. Those requirements should be reviewed with qualified legal, insurance and compliance professionals before an incident occurs.
Prepare for Containment and Recovery
Incident response is not simply about getting systems back online as quickly as possible.
Restoring operations before the threat has been understood or contained could allow an attacker to regain access. The organization may also need to preserve logs, devices or other information for an investigation.
Technical responders should have clear authority and procedures for isolating affected accounts, devices or systems when necessary. Recovery decisions should be coordinated with those responsible for investigating the incident.
Backups are also a critical part of recovery, but having backups is not the same as knowing they will work. Organizations should confirm that backups are protected, accessible, and tested regularly.
A response plan should document who can authorize restoration, which systems receive priority, and how the organization will confirm that restored systems are safe to use.
Practice the Plan
A written plan is only the beginning.
Tabletop exercises allow employees and leaders to talk through a realistic incident without interrupting actual operations. A facilitator presents a scenario, such as ransomware, compromised email or unavailable systems, and participants discuss how they would respond.
These exercises often reveal practical questions that are easy to overlook:
- Does everyone know whom to call?
- Are responsibilities clearly assigned?
- Can important contact information be accessed offline?
- Do decision-makers understand their authority?
- Can the company communicate if email is unavailable?
- Are outside partners included in the plan?
- Do recovery priorities reflect current business operations?
The purpose is not to catch employees making mistakes. It is to identify gaps, clarify responsibilities and build familiarity before an actual incident.
Review and Update Regularly
Businesses, employees and technology change. An incident-response plan must change with them.
Review the plan when the organization adopts new systems, changes vendors, hires key personnel or modifies important business processes. Contact information, insurance requirements and outside support relationships should also be checked regularly.
After a tabletop exercise or actual incident, document what worked, what caused confusion and what should be improved.
Preparation Creates a Stronger Response
No incident-response plan can eliminate every difficult decision. It can, however, give your organization a clearer place to begin.
Knowing who will respond, which systems matter most, how communications will be handled and what recovery resources are available can help your team act with greater coordination and confidence.
Citynet helps organizations strengthen their cybersecurity readiness through security monitoring, backup and recovery solutions, cybersecurity planning and a comprehensive range of managed services.
Do not wait for a system alert to begin planning your response. Visit citynet.net/security to learn how Citynet can help your organization prepare.
