Data Breach Response Playbook Template

This Data Breach Response Playbook (the “Playbook”) is maintained by [Company Name] and is effective as of [Effective Date].

1. Purpose

1.1 Purpose. This Playbook provides step-by-step procedures to detect, contain, investigate, and respond to suspected or confirmed data breaches involving Company data.

1.2 Scope. This Playbook applies to incidents involving: ☐ Customer data ☐ Employee data ☐ Vendor data ☐ Company confidential information ☐ Other: [Define].

2. Definitions

2.1 Data Breach. Unauthorized access, acquisition, disclosure, loss, or misuse of Sensitive Data.

2.2 Sensitive Data. Personal data, credentials, financial data, health data, and confidential business information, as defined by Company policy.

2.3 Incident Commander. The person responsible for coordinating response activities: [Role/Name].

2.4 Breach Response Team. Security/IT, Legal, Privacy, Communications, and other designated roles.

3. Roles and Contacts

3.1 Internal Team.

• Incident Commander: [Name, Phone, Email]

• Security Lead: [Name, Phone, Email]

• Legal Counsel: [Name, Phone, Email]

• Privacy Officer (Optional): [Name, Phone, Email]

• IT Operations: [Name, Phone, Email]

• Communications/PR: [Name, Phone, Email]

• Customer Support Lead: [Name, Phone, Email]

• HR (If Employee Data): [Name, Phone, Email]

  3.2 External Contacts (Optional).

• Outside Counsel: [Firm/Contact]

• Forensics Vendor: [Firm/Contact]

• Cyber Insurance Carrier: [Carrier/Policy/Contact]

• Law Enforcement (Local/Federal): [Contact]

Incident Commander: [Name, Phone, Email]

Security Lead: [Name, Phone, Email]

Legal Counsel: [Name, Phone, Email]

Privacy Officer (Optional): [Name, Phone, Email]

IT Operations: [Name, Phone, Email]

Communications/PR: [Name, Phone, Email]

Customer Support Lead: [Name, Phone, Email]

HR (If Employee Data): [Name, Phone, Email]

3.2 External Contacts (Optional).

Outside Counsel: [Firm/Contact]

Forensics Vendor: [Firm/Contact]

Cyber Insurance Carrier: [Carrier/Policy/Contact]

Law Enforcement (Local/Federal): [Contact]

4. Severity Levels and Escalation

4.1 Severity Levels.

• SEV-1 (Critical): Ongoing unauthorized access or large-scale exposure.

• SEV-2 (High): Confirmed breach with limited scope or quickly contained.

• SEV-3 (Moderate): Suspected breach; investigation ongoing.

• SEV-4 (Low): Security event with no confirmed data exposure.

  4.2 Escalation Timeline.

• Notify Incident Commander within: [__] minutes

• Notify Legal/Privacy within: [__] hours (SEV-1/SEV-2)

• Notify Executive Sponsor within: [__] hours (SEV-1)

  4.3 Executive Sponsor. [Name/Role].

SEV-1 (Critical): Ongoing unauthorized access or large-scale exposure.

SEV-2 (High): Confirmed breach with limited scope or quickly contained.

SEV-3 (Moderate): Suspected breach; investigation ongoing.

SEV-4 (Low): Security event with no confirmed data exposure.

4.2 Escalation Timeline.

Notify Incident Commander within: [__] minutes

Notify Legal/Privacy within: [__] hours (SEV-1/SEV-2)

Notify Executive Sponsor within: [__] hours (SEV-1)

4.3 Executive Sponsor. [Name/Role].

5. Immediate Response (First 0–60 Minutes)

5.1 Confirm and Triage.

• Record who discovered the incident and when

• Identify affected systems and accounts

• Determine whether access is ongoing

  5.2 Containment Actions.

• Disable compromised accounts / rotate credentials

• Block suspicious IPs or tokens

• Isolate impacted systems (network segmentation)

• Preserve logs and snapshots before changes

  5.3 Evidence Preservation.

• Start an incident timeline

• Save relevant logs, alerts, tickets, and communications

• Avoid actions that overwrite evidence unless necessary for containment

  5.4 Initial Notifications (Internal).

• Notify Incident Commander and Security Lead

• Notify Legal/Privacy for potential breach incidents

• Open an incident channel and restrict access to need-to-know

Record who discovered the incident and when

Identify affected systems and accounts

Determine whether access is ongoing

5.2 Containment Actions.

Disable compromised accounts / rotate credentials

Block suspicious IPs or tokens

Isolate impacted systems (network segmentation)

Preserve logs and snapshots before changes

5.3 Evidence Preservation.

Start an incident timeline

Save relevant logs, alerts, tickets, and communications

Avoid actions that overwrite evidence unless necessary for containment

5.4 Initial Notifications (Internal).

Notify Incident Commander and Security Lead

Notify Legal/Privacy for potential breach incidents

Open an incident channel and restrict access to need-to-know

6. Investigation and Impact Assessment (First 1–24 Hours)

6.1 Root Cause Investigation.

• Identify attack vector (phishing, exploited vulnerability, misconfig, insider)

• Determine time window of exposure

• Identify data accessed, exfiltrated, altered, or deleted

  6.2 Data Classification and Scope.

• Determine data types (PII, credentials, payment data, health data)

• Estimate number of affected individuals/records

• Determine whether encryption was in place and key exposure risk

  6.3 System Inventory.

• List impacted systems/services and dependencies

• Identify affected customers/tenants (if multi-tenant)

  6.4 Third-Party Involvement.

• Determine whether vendors or subprocessors are involved

• Preserve vendor logs and notify per contract terms (if required)

  6.5 Forensics Support (Optional).

• Engage external forensics under counsel direction if needed

• Document chain of custody for evidence

Identify attack vector (phishing, exploited vulnerability, misconfig, insider)

Determine time window of exposure

Identify data accessed, exfiltrated, altered, or deleted

6.2 Data Classification and Scope.

Determine data types (PII, credentials, payment data, health data)

Estimate number of affected individuals/records

Determine whether encryption was in place and key exposure risk

6.3 System Inventory.

List impacted systems/services and dependencies

Identify affected customers/tenants (if multi-tenant)

6.4 Third-Party Involvement.

Determine whether vendors or subprocessors are involved

Preserve vendor logs and notify per contract terms (if required)

6.5 Forensics Support (Optional).

Engage external forensics under counsel direction if needed

Document chain of custody for evidence

7. Containment, Eradication, and Recovery (24–72 Hours)

7.1 Containment Completion.

• Confirm unauthorized access is stopped

• Remove malicious persistence mechanisms

• Patch exploited vulnerabilities

  7.2 Credential and Key Rotation.

• Rotate credentials, API keys, tokens, certificates

• Review privileged access and enforce MFA

  7.3 Recovery Steps.

• Restore systems from clean backups (if needed)

• Validate integrity of data and systems

• Increase monitoring and alerting for recurrence

  7.4 Customer Mitigation (If Needed).

• Force password resets

• Revoke tokens/sessions

• Provide guidance on protective steps

Confirm unauthorized access is stopped

Remove malicious persistence mechanisms

Patch exploited vulnerabilities

7.2 Credential and Key Rotation.

Rotate credentials, API keys, tokens, certificates

Review privileged access and enforce MFA

7.3 Recovery Steps.

Restore systems from clean backups (if needed)

Validate integrity of data and systems

Increase monitoring and alerting for recurrence

7.4 Customer Mitigation (If Needed).

Force password resets

Revoke tokens/sessions

Provide guidance on protective steps

8. Legal, Contractual, and Notification Decisions

8.1 Notification Decision Owner. Final decisions are approved by: [Legal/Privacy + Executive].

8.2 Notification Triggers. Consider:

• Applicable breach notification laws (jurisdiction-based)

• Contractual notification clauses (customers, vendors)

• Regulatory requirements (industry-specific)

• Risk of harm (identity theft, fraud, account takeover)

  8.3 Notification Timeline. Target internal deadline for notification decision: [__] hours/days from confirmation.

  8.4 Regulator/Law Enforcement Coordination (Optional). Coordinate with law enforcement: ☐ Yes ☐ No, and document rationale.

  8.5 Documentation. Document the legal analysis and decision reasoning in the incident file.

Applicable breach notification laws (jurisdiction-based)

Contractual notification clauses (customers, vendors)

Regulatory requirements (industry-specific)

Risk of harm (identity theft, fraud, account takeover)

8.3 Notification Timeline. Target internal deadline for notification decision: [__] hours/days from confirmation.

8.4 Regulator/Law Enforcement Coordination (Optional). Coordinate with law enforcement: ☐ Yes ☐ No, and document rationale.

8.5 Documentation. Document the legal analysis and decision reasoning in the incident file.

9. Communications and Messaging

9.1 Single Source of Truth. Communications lead: [Name/Role].

9.2 Internal Updates. Cadence: ☐ Hourly ☐ Daily ☐ As needed.

9.3 External Statements. No external statements may be made without approval from: [Legal + Comms + Exec].

9.4 Customer Support Prep. Prepare FAQs, macros, and escalation steps for support teams.

10. Templates and Checklists

10.1 Incident Summary Template.

• Incident ID: [__]

• Detected by: [__]

• Detected at: [__]

• Confirmed at: [__]

• Severity: [__]

• Systems impacted: [__]

• Data impacted: [__]

• Containment actions: [__]

• Current status: [__]

• Next steps: [__]

  10.2 Notification Checklist.

• Identify jurisdictions and applicable laws

• Identify customers/partners requiring notice

• Draft notice language and FAQs

• Approvals obtained

• Notification method and tracking

• Support team readiness

  10.3 Post-Incident Review Checklist.

• Root cause documented

• Controls improved and verified

• Incident response process updated

• Training updates assigned

Incident ID: [__]

Detected by: [__]

Detected at: [__]

Confirmed at: [__]

Severity: [__]

Systems impacted: [__]

Data impacted: [__]

Containment actions: [__]

Current status: [__]

Next steps: [__]

10.2 Notification Checklist.

Identify jurisdictions and applicable laws

Identify customers/partners requiring notice

Draft notice language and FAQs

Approvals obtained

Notification method and tracking

Support team readiness

10.3 Post-Incident Review Checklist.

Root cause documented

Controls improved and verified

Incident response process updated

Training updates assigned

11. Post-Incident Review and Improvements

11.1 Lessons Learned Meeting. Hold within [__] days after containment.

11.2 Root Cause Report. Prepare a report including timeline, cause, scope, actions taken, and remediation plan.

11.3 Remediation Tracking. Track action items in: [Tool], with owners and deadlines.

11.4 Policy Updates. Update related policies and playbooks as needed.

12. Recordkeeping

12.1 Incident File. Maintain an incident file with logs, evidence references, decisions, and communications drafts.

12.2 Retention Period. Retain breach records for: [__] years or per legal requirements.

12.3 Confidential Handling. Breach records are confidential and shared only on a need-to-know basis.

Signatures

By signing below, the undersigned acknowledge they have reviewed and adopt this Data Breach Response Playbook.

Incident Response Owner: [Name]

Title/Role: [Title]

Date: [Date]

Signature: ___________________________

Executive Sponsor (Optional): [Name]

Title/Role: [Title]

Date: [Date]

Signature: ___________________________