SOC 2 Control Implementation Guide

Incident Response

Incident Response Plan for SOC 2

The incident response plan defines roles, escalation paths, severity levels, communication procedures, containment steps, recovery responsibilities, and required evidence for security and availability incidents.

Use this guide to put the control into operation, decide what records to retain, and check that an auditor can trace the evidence back to the work your team performed.

Maintained by GreenHat Security · Reviewed August 21, 2026

What this control should accomplish

When a security or availability incident occurs, the team can quickly declare it, assign leadership, coordinate containment and recovery, preserve important facts, and make communication decisions through a known process.

First SOC 2 program

A credible starting point

Create a concise plan with declaration criteria, named roles and backups, severity examples, contact methods, a response checklist, evidence-preservation steps, and an annual practice scenario.

As the company scales

Make it repeatable

Add service-specific playbooks, on-call integration, legal and privacy decision paths, out-of-band communications, trained role rotations, exercise coverage, and metrics from real incidents and simulations.

How to implement Incident Response Plan

  1. 1

    Define when to declare an incident

    Give responders plain examples and a clear route for declaring suspected security, privacy, availability, or customer-impacting incidents without waiting for perfect certainty.

    You should end up with: Incident declaration and severity guide

  2. 2

    Assign roles and authority

    Name primary and backup incident commanders, technical leads, communications owners, record keepers, and legal or privacy contacts, including the decisions each may make.

    You should end up with: Current incident role and authority roster

  3. 3

    Document the response flow

    Create usable steps for intake, classification, escalation, containment, evidence preservation, investigation, recovery validation, communication, and closure.

    You should end up with: Approved incident response plan and quick checklist

  4. 4

    Prepare resilient communications

    Document primary and alternate contact methods, secure collaboration locations, executive escalation, and how the team will work if ordinary identity or messaging is unavailable.

    You should end up with: Incident contact and out-of-band communication plan

  5. 5

    Preserve the decision record

    Use a consistent incident record for timestamps, facts, hypotheses, actions, approvals, customer impact, evidence links, and unresolved questions.

    You should end up with: Incident record format and evidence location

  6. 6

    Exercise and improve the plan

    Run a realistic scenario, observe role handoffs and decisions, record gaps, update the plan, and verify high-risk corrective actions.

    You should end up with: Exercise report and closed improvement actions

Evidence to keep, and what it should prove

Build the evidence set in three layers: what defines the control, who approved or reviewed it, and what proves it operated. Collect operating records when the work happens so they remain dated, attributable, correctly scoped, and traceable to the underlying activity.

Before sharing, remove unrelated personal or customer data, never expose passwords, tokens, or secret values, preserve enough source context to authenticate the record, and use the secure exchange approved for the engagement.

Policy / design artifacts

Documents that define the control, its scope, ownership, and expected way of working.

Incident response plan

  • Confirm what the record proves

    The company has an approved, current response process for declaration, command, escalation, containment, evidence preservation, investigation, recovery, communication, and closure.

  • Include this context

    Scope and effective version

  • Include this context

    Approver and date

  • Include this context

    Declaration route

  • Include this context

    Response phases

  • Include this context

    Communication paths

  • Include this context

    Evidence location

Weak evidence to avoid

A generic plan that does not identify the company's systems, declaration channel, current contacts, decision authority, or effective version.

role assignments

  • Confirm what the record proves

    Primary and backup responders are named by role, reachable, and authorized to make defined technical, executive, privacy, legal, and communication decisions.

  • Include this context

    Response role

  • Include this context

    Primary assignee

  • Include this context

    Backup assignee

  • Include this context

    Contact method

  • Include this context

    Decision authority

  • Include this context

    Last verified date

Weak evidence to avoid

A list of department names with no primary or backup person, contact route, authority, or verification date.

severity matrix

  • Confirm what the record proves

    Responders use consistent business, customer, data, service, and technical factors to classify incidents and reach the appropriate escalation path.

  • Include this context

    Severity levels

  • Include this context

    Decision factors

  • Include this context

    Company-specific examples

  • Include this context

    Required escalation

  • Include this context

    Response owner

  • Include this context

    Effective version

Weak evidence to avoid

Vendor severity labels copied without company examples, customer or data impact, escalation recipients, or an approved version.

Approval / review evidence

Records showing that an accountable person reviewed, approved, challenged, or accepted the work.

tabletop records

  • Confirm what the record proves

    The response team practiced a defined scenario, exercised role and communication decisions, identified gaps, and assigned improvements.

  • Include this context

    Scenario and date

  • Include this context

    Participants and roles

  • Include this context

    Timeline or prompts

  • Include this context

    Decisions made

  • Include this context

    Findings

  • Include this context

    Actions and owners

Weak evidence to avoid

A calendar invite for an incident meeting with no scenario, attendance, decisions, findings, or corrective-action record.

Which records should you prepare for the audit?

Type 1

Evidence at the as-of date

The current approved response plan, verified role and contact roster, severity and declaration paths, secure evidence location, and a recent exercise or actual incident record showing the process is usable at the review date.

Type 2

Evidence across the review period

Every declared security, privacy, availability, or customer-impacting incident during the review period and every incident-response exercise due under the period-effective exercise schedule, including completed, cancelled, missed, and rescheduled exercises. If no incidents occurred, retain a full-period zero-result incident-register export, reconciled intake-source exports, and an attributable management confirmation rather than creating a fictional incident record.

Completeness check

Reconcile the full-period incident register to declared incidents found in security cases, on-call records, service incidents, and customer-support escalation sources, and reconcile the exercise schedule to exercise records. For a zero-incident period, preserve the exact full-period queries, source coverage, zero-result exports, and management confirmation; an exercise demonstrates preparedness but is not an actual incident occurrence.

Build the record set from

  • Incident management platform
  • Security case-management and SIEM
  • On-call service
  • Customer support or service-incident system
  • Exercise calendar and action tracker

Keep these fields for each record

  • Incident or exercise ID
  • Reported or scheduled time
  • Category and severity
  • Commander and participants
  • Affected service or customer scope
  • Actions and decisions
  • Status and closure
  • Evidence or finding links

How an auditor may test this control

Use this checklist to prepare for procedures an auditor may perform. The exact steps and sample selection depend on your engagement scope and the service auditor's professional judgment.

  • Confirm the intended control outcome

    Determine whether the control is designed to achieve this result: When a security or availability incident occurs, the team can quickly declare it, assign leadership, coordinate containment and recovery, preserve important facts, and make communication decisions through a known process.

  • Confirm ownership and operating cadence

    Compare the documented owner with the intended role (CISO / Incident Commander / Privacy-Legal Owner), then compare dated records with the stated cadence: Per event/incident; tabletop at least annually.

  • Establish the complete audit record set

    Reconcile the full-period incident register to declared incidents found in security cases, on-call records, service incidents, and customer-support escalation sources, and reconcile the exercise schedule to exercise records. For a zero-incident period, preserve the exact full-period queries, source coverage, zero-result exports, and management confirmation; an exercise demonstrates preparedness but is not an actual incident occurrence.

  • Prepare the as-of-date evidence for a Type 1 engagement

    The current approved response plan, verified role and contact roster, severity and declaration paths, secure evidence location, and a recent exercise or actual incident record showing the process is usable at the review date.

  • Prepare period evidence for a Type 2 engagement

    Every declared security, privacy, availability, or customer-impacting incident during the review period and every incident-response exercise due under the period-effective exercise schedule, including completed, cancelled, missed, and rescheduled exercises. If no incidents occurred, retain a full-period zero-result incident-register export, reconciled intake-source exports, and an attributable management confirmation rather than creating a fictional incident record.

  • Inspect the policy / design artifacts

    Documents that define the control, its scope, ownership, and expected way of working.

    • Inspect Incident response plan

      For each selected record, confirm it demonstrates The company has an approved, current response process for declaration, command, escalation, containment, evidence preservation, investigation, recovery, communication, and closure.

      • Scope and effective version
      • Approver and date
      • Declaration route
      • Response phases
      • Communication paths
      • Evidence location
    • Inspect role assignments

      For each selected record, confirm it demonstrates Primary and backup responders are named by role, reachable, and authorized to make defined technical, executive, privacy, legal, and communication decisions.

      • Response role
      • Primary assignee
      • Backup assignee
      • Contact method
      • Decision authority
      • Last verified date
    • Inspect severity matrix

      For each selected record, confirm it demonstrates Responders use consistent business, customer, data, service, and technical factors to classify incidents and reach the appropriate escalation path.

      • Severity levels
      • Decision factors
      • Company-specific examples
      • Required escalation
      • Response owner
      • Effective version
  • Inspect the approval / review evidence

    Records showing that an accountable person reviewed, approved, challenged, or accepted the work.

    • Inspect tabletop records

      For each selected record, confirm it demonstrates The response team practiced a defined scenario, exercised role and communication decisions, identified gaps, and assigned improvements.

      • Scenario and date
      • Participants and roles
      • Timeline or prompts
      • Decisions made
      • Findings
      • Actions and owners
  • Trace the control from design to operation

    Use the categories that apply to this control: connect any policy or design artifact to its approval or review record, then trace a selected operating record through execution, result, and any exception or remediation.

Common implementation and evidence gaps

  • The plan is generic and does not name the company's actual systems, contacts, or authority.
  • Only one person can lead or access key response tools.
  • The team has no safe communication path if ordinary identity or messaging is compromised.
  • Responders take action but do not preserve timestamps, evidence, and decision rationale.
  • An exercise identifies gaps that never receive owners or verification.

Before you call this control ready

  • Can any employee find the declaration route and reach the current on-call contact?
  • Do primary and backup leaders know which containment and communication decisions they may make?
  • Could the team coordinate if its ordinary identity or messaging service were unavailable?
  • Does the incident record capture facts, actions, approvals, impact, and evidence links?
  • Can the latest exercise findings be traced to completed and verified improvements?

Trust Services Criteria references

These identifiers help you navigate related Trust Services Criteria. They do not reproduce the criteria or prove that this control fully addresses them in your environment.

  • CC7.3
  • CC7.4
  • CC7.5

Confirm final scope, mappings, and testing expectations with your service auditor. SOC 2® is an AICPA trademark; GreenHat Security is not affiliated with or endorsed by AICPA.