Incident Response Plan

Document owner: Chief Information Security Officer (CISO) Version: 3.0 Effective date: January 1, 2026 Last updated: January 15, 2026 Classification: Public — Trust Center Review cadence: Annual + after every SEV1/SEV2 incident Company: Acme Cloud, Inc. Address: 1200 Market Street, Suite 400, San Francisco, CA 94103, USA Primary contacts: trust@acmecloud.com | security@acmecloud.com | privacy@acmecloud.com

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1. Document Purpose and Objectives

This Incident Response Plan establishes a comprehensive framework for detecting, analyzing, containing, eradicating, and recovering from security incidents affecting Acme Cloud, Inc. systems, infrastructure, customer data, or business operations. The plan provides structured procedures enabling rapid response while maintaining evidence integrity, regulatory compliance, and stakeholder communication throughout the incident lifecycle.

The primary objectives of this Incident Response Plan include the following strategic and operational goals that guide all incident handling activities across the organization:

Objective	Description	Success Metric
Rapid Detection	Identify security incidents within minutes of occurrence through automated monitoring, threat intelligence correlation, and human reporting channels	Mean Time to Detect (MTTD) under 30 minutes for SEV1/SEV2 incidents
Effective Containment	Limit incident scope and prevent lateral movement or data exfiltration through isolation, credential revocation, and network segmentation	Containment achieved within defined SLA per severity level
Evidence Preservation	Maintain forensic evidence integrity through documented chain of custody, immutable logging, and standardized collection procedures	100% evidence admissibility for legal proceedings when required
Business Continuity	Restore critical business functions within Recovery Time Objectives while maintaining security posture	Meet or exceed RTO targets defined in Business Continuity Plan
Regulatory Compliance	Satisfy notification obligations under GDPR, HIPAA, state breach laws, and contractual requirements	Zero regulatory penalties for notification failures
Continuous Improvement	Transform incident learnings into security enhancements through rigorous post-incident review and remediation tracking	100% closure of PIR action items within SLA
Stakeholder Confidence	Maintain customer, employee, and partner trust through transparent, timely communication	Post-incident satisfaction score above 4.0/5.0

This plan aligns with SOC 2 Trust Services Criteria CC7.3-CC7.5 (incident management), ISO 27001:2022 Annex A.5.24-A.5.28 (information security incident management), NIST Cybersecurity Framework Respond function, GDPR Articles 33-34 (breach notification), HIPAA Security Rule §164.308(a)(6) (security incident procedures), and industry best practices including NIST SP 800-61 Rev 2 and SANS Incident Handler's Handbook.

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2. Definitions and Terminology

This section establishes standard terminology used throughout the Incident Response Plan to ensure consistent interpretation and application across all response activities and communications.

Term	Definition
Security Incident	Any event that actually or potentially compromises the confidentiality, integrity, or availability of Acme Cloud systems, data, or services, including unauthorized access, data breaches, malware infections, denial of service attacks, insider threats, and physical security breaches
Security Event	An observable occurrence in a system, network, or environment that may indicate a security incident but requires analysis to determine significance and whether incident declaration is warranted
Data Breach	A security incident resulting in unauthorized access to, acquisition of, or exfiltration of personal data, customer data, or confidential information that triggers notification obligations
Incident Commander (IC)	The designated individual with overall authority and responsibility for coordinating incident response activities, making tactical decisions, and approving external communications
Technical Incident Commander (TIC)	The designated individual responsible for directing technical investigation, forensic analysis, containment actions, and recovery procedures under IC oversight
War Room	Physical or virtual space where incident responders coordinate response activities, share findings, and make tactical decisions during active incident response
Containment	Actions taken to limit the scope of an incident, prevent further damage, and isolate affected systems while maintaining evidence integrity
Eradication	Actions taken to remove the root cause of an incident, including malware removal, vulnerability patching, credential reset, and configuration hardening
Recovery	Actions taken to restore affected systems and services to normal operations while implementing enhanced monitoring and validation procedures
Post-Incident Review (PIR)	Structured analysis conducted after incident closure to identify root causes, contributing factors, response effectiveness, and improvement opportunities
Indicator of Compromise (IOC)	Forensic artifact or observable that indicates system compromise, including file hashes, IP addresses, domain names, registry keys, and behavioral patterns
Mean Time to Detect (MTTD)	Average elapsed time between incident occurrence and detection through monitoring, alerting, or human reporting
Mean Time to Contain (MTTC)	Average elapsed time between incident detection and effective containment of the threat
Mean Time to Recover (MTTR)	Average elapsed time between incident detection and full restoration of affected services to normal operations
Chain of Custody	Documented chronological record of evidence handling, including who collected, stored, accessed, and transferred forensic artifacts
Legal Hold	Directive to preserve potentially relevant data and suspend normal retention/deletion policies pending litigation, investigation, or regulatory action
Tabletop Exercise	Discussion-based training session where participants walk through incident scenarios to validate procedures, identify gaps, and build response muscle memory
Functional Exercise	Hands-on simulation where participants execute actual response procedures in a controlled environment to test technical capabilities

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3. Scope and Applicability

This Incident Response Plan applies to all security incidents affecting Acme Cloud systems, data, personnel, and operations regardless of source, vector, or geographic location. The plan governs response activities for incidents occurring within Acme Cloud infrastructure, customer-facing services, corporate systems, and third-party environments processing Acme Cloud data.

3.1 Systems and Services in Scope

Category	Systems Covered	Responsible Team
Production Infrastructure	AWS compute, database, storage, networking, container orchestration, CDN, DNS, load balancers, API gateways	Site Reliability Engineering
Customer-Facing Applications	Acme Cloud SaaS platform, customer portal, API endpoints, mobile applications, authentication services	Product Engineering
Internal Corporate Systems	Identity provider (Okta), email (Google Workspace), collaboration (Slack), HRIS, financial systems, development tools	IT Operations
Security Infrastructure	SIEM (Datadog Security Monitoring), endpoint protection, vulnerability scanners, secrets management, PKI	Security Engineering
Third-Party Services	Cloud providers, payment processors, communication services, monitoring platforms, subprocessors	Vendor Management
Physical Facilities	Corporate offices, data center colocations (via AWS), employee remote work environments	Facilities and IT

3.2 Incident Categories Covered

This plan addresses the following incident categories with specific playbooks and escalation procedures for each:

Category	Description	Example Scenarios
Malware and Ransomware	Malicious software infection affecting systems, data encryption, or cryptocurrency mining	Ransomware deployment, trojan infection, cryptominer on server
Unauthorized Access	Illegitimate access to systems, accounts, or data through compromised credentials, exploitation, or social engineering	Stolen credentials, privilege escalation, session hijacking
Data Breach	Unauthorized access, acquisition, or exfiltration of personal data, customer data, or confidential information	Database dump, file server access, email compromise
Denial of Service	Attacks disrupting service availability through resource exhaustion, network flooding, or application-layer attacks	DDoS attack, application resource exhaustion, DNS amplification
Insider Threat	Security incidents caused by current or former employees, contractors, or partners with authorized access	Data theft, sabotage, policy violations, credential sharing
Supply Chain Compromise	Security incidents originating from compromised vendors, suppliers, or software dependencies	Compromised NPM package, vendor credential breach, SaaS platform compromise
Physical Security	Incidents involving physical access to facilities, devices, or infrastructure	Office break-in, stolen laptop, unauthorized visitor
Social Engineering	Attacks manipulating personnel through deception to gain access, information, or actions	Phishing, pretexting, business email compromise
AI and Machine Learning	Incidents involving AI systems including prompt injection, model poisoning, data extraction, or misuse	Prompt injection attack, training data poisoning, model theft

3.3 Exclusions

The following situations are addressed by related processes and not managed directly under this Incident Response Plan:

Exclusion	Governing Process	Reference
Service outages without security implications	Site Reliability Engineering incident management	SRE Runbooks
Customer-reported bugs without security impact	Product support escalation	Support Playbook
Vulnerability disclosures before exploitation	Vulnerability Disclosure Policy	Trust Center
Business continuity events without security trigger	Business Continuity Plan	Trust Center
HR policy violations without data impact	Human Resources investigation procedures	Employee Handbook
Legal and regulatory inquiries	Legal department procedures	General Counsel

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4. Governance Structure and Roles

Effective incident response requires clear authority, defined responsibilities, and established escalation paths. This section defines the governance structure, key roles, and decision-making authority for incident response activities.

4.1 Incident Response Team Structure

Role	Primary Responsibilities	Default Assignment	Backup Assignment
Incident Commander (IC)	Overall coordination and decision authority; approves external communications; makes tactical decisions on containment vs availability trade-offs; ensures regulatory notification compliance; serves as single point of accountability	On-call Security Engineering Manager	CISO → CTO → CEO
Technical Incident Commander (TIC)	Directs technical investigation and forensic analysis; coordinates containment and eradication actions; manages evidence collection and preservation; oversees recovery procedures	Senior Security Engineer (on-call)	Security Engineering Lead
Security Lead	Conducts threat analysis and attribution; performs forensic investigation; develops containment strategies; creates detection signatures; coordinates with threat intelligence	Security Engineer	TIC (combined role)
SRE Lead	Executes infrastructure containment actions; manages service restoration; implements network isolation; coordinates with cloud providers; monitors system stability	SRE Engineer (on-call)	VP Engineering
Legal and Privacy Lead	Assesses regulatory notification requirements; coordinates with external counsel; manages legal hold implementation; guides customer and regulator notification content; advises on law enforcement engagement	General Counsel	Privacy Officer
Privacy Officer	Evaluates personal data impact; determines GDPR/HIPAA notification thresholds; coordinates data subject notifications; maintains breach register; liaises with supervisory authorities	Chief Privacy Officer	General Counsel
Communications Lead	Drafts customer and employee communications; manages status page updates; coordinates media inquiries; ensures message consistency across channels	VP Marketing	PR agency on retainer
Customer Success Lead	Coordinates enterprise customer outreach; manages dedicated customer war room access; handles customer escalations; gathers customer impact information	VP Customer Success	Director of Customer Success
Executive Sponsor	Provides executive decision authority for business-impacting actions; approves major expenditures; represents to Board and investors; authorizes law enforcement engagement	CISO (SEV2), CEO (SEV1)	Board Chair
Scribe	Documents timeline and decisions in real-time; maintains war room notes; preserves evidence chain of custody records; captures action items	Rotating team member	Security Operations
Subject Matter Experts	Provide specialized expertise on affected systems, applications, or technologies; advise on technical decisions; assist with root cause analysis	As required per incident	Engineering teams

4.2 Escalation Matrix

Severity	Initial Notification	Escalation Trigger	Executive Notification	Board Notification
SEV1 (Critical)	Immediate IC activation; all roles notified within 15 minutes	Automatic upon declaration	CEO, CISO within 15 minutes	Chair within 4 hours; full Board within 24 hours
SEV2 (High)	IC activation within 30 minutes; core roles notified	Customer data potentially affected or media attention likely	CISO within 30 minutes; CEO if escalated	Upon IC recommendation
SEV3 (Medium)	Security Engineering within 4 business hours	Upgrade if scope expands or containment fails	CISO in daily standup	Not required
SEV4 (Low)	Security Operations next business day	Upgrade if pattern indicates larger issue	Weekly metrics report	Not required

4.3 Authority and Decision Rights

Decision Category	Authority Level	Approval Required
Isolate individual system or workload	TIC	Post-action notification to IC
Revoke user credentials	Security Lead	Post-action notification to TIC
Block external IP addresses or domains	Security Lead	Post-action notification to TIC
Take production service offline	IC	Real-time approval required
Restore from backup	TIC	IC approval for production
Customer notification content and timing	IC	Legal review required
Regulatory notification	Legal Lead	IC and CEO awareness
Media statement	Communications Lead	IC, Legal, and CEO approval
Engage law enforcement	Executive Sponsor	Legal and CEO approval
Engage external forensics firm	CISO	CFO approval for contract
Authorize emergency expenditure over $50,000	CEO	Post-action Board notification

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5. Incident Severity Classification

Accurate severity classification ensures appropriate resource allocation, stakeholder notification, and response urgency. Severity may be escalated or de-escalated as facts emerge during investigation.

5.1 Severity Levels

Severity	Classification Criteria	Response Posture	Notification Requirements
SEV1 Critical	Active breach with confirmed or likely customer data exfiltration; ransomware affecting production systems; complete service outage with security cause; compromise of authentication infrastructure; insider threat with confirmed data theft	Immediate all-hands response; 24/7 coverage until resolved; war room activated; external forensics engaged	IC within 15 minutes; Executive within 15 minutes; Board within 4 hours; Customers within 24 hours of confirmation
SEV2 High	Significant compromise without confirmed exfiltration; major feature degradation with security cause; compromised administrative credentials; WAF bypass with exploitation; lateral movement detected; advanced persistent threat indicators	Security lead within 30 minutes; war room activated; extended hours coverage	IC within 30 minutes; CISO within 1 hour; Executive if customer data at risk; Customers within 48 hours if affected
SEV3 Medium	Contained security event with limited impact; malware on single endpoint; failed intrusion attempt with IOC; policy violation with data access; phishing with credential entry but no lateral movement	Business hours response with priority handling; 4-hour initial triage; next business day escalation path	Security Engineering within 4 hours; CISO in daily standup; Customers if individual accounts affected
SEV4 Low	Low-risk anomaly requiring investigation; phishing email reported without credential entry; misconfiguration identified (no exploitation); vulnerability scan alerts; minor policy violations	Next business day triage; standard investigation queue	Security Operations queue; weekly metrics reporting

5.2 Classification Decision Matrix

Factor	Weight	SEV1 Indicators	SEV2 Indicators	SEV3 Indicators	SEV4 Indicators
Data Exposure	High	Confirmed PII/PHI exfiltration; encryption for ransom	Potential access to sensitive data; no confirmed exfiltration	Limited data exposure; single user impact	No data exposure confirmed
System Compromise	High	Multiple production systems; authentication infrastructure	Single production system; administrative access	Single endpoint; limited access	No system compromise
Service Impact	Medium	Complete outage; security-caused degradation	Major feature unavailable; performance impact	Minor feature impact; workaround available	No service impact
Attack Sophistication	Medium	APT indicators; custom malware; zero-day exploitation	Known attack patterns with modifications	Commodity malware; known techniques	Opportunistic scanning
Regulatory Exposure	High	Mandatory breach notification triggered	Potential notification required pending investigation	Internal reporting only	No regulatory impact
Reputational Risk	Medium	Media attention likely; customer trust at risk	Enterprise customers affected; potential media	Limited external visibility	Internal only

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6. Incident Lifecycle Procedures

This section details the step-by-step procedures for each phase of the incident response lifecycle, from initial detection through post-incident review and continuous improvement.

6.1 Phase 1: Detection and Reporting

Incidents are detected through multiple channels requiring consistent intake, initial assessment, and escalation to appropriate response resources.

Detection Channel	Description	Response SLA	Escalation Path
SIEM Alerting	Datadog Security Monitoring automated alerts based on detection rules, anomaly detection, and threat intelligence correlation	15 minutes for critical alerts; 4 hours for high alerts	Security Operations → Security Engineering → IC
Endpoint Detection	CrowdStrike Falcon alerts for endpoint threats, malware detection, and behavioral indicators	15 minutes for critical; 1 hour for high	Security Operations → Security Engineering
Cloud Security	AWS GuardDuty, Security Hub, and CloudTrail alerts for infrastructure threats and configuration drift	30 minutes for critical; 4 hours for high	Security Operations → SRE → Security Engineering
Employee Reporting	Direct reports to security@acmecloud.com or Slack #security-incidents channel	1 hour acknowledgment	Security Operations → Triage
Customer Reporting	Reports through support channels or trust@acmecloud.com	1 hour acknowledgment	Support → Security Operations → Triage
External Researchers	Reports through Vulnerability Disclosure Policy	1 business day acknowledgment	Security Engineering → Triage
Threat Intelligence	External feeds, ISACs, vendor notifications, and industry alerts	4 hours for actionable intelligence	Security Engineering → Assessment
Third-Party Notification	Vendor or subprocessor incident notifications	1 hour acknowledgment	Vendor Management → Security → Legal

All Acme Cloud workforce members must report suspected security incidents within one hour of discovery through security@acmecloud.com or Slack #security-incidents. Failure to report suspected incidents may result in disciplinary action per the Code of Conduct.

6.2 Phase 2: Triage and Classification

Upon incident report or alert, Security Operations performs initial triage to validate the incident, assess severity, and activate appropriate response resources.

Triage Procedure:

1. Acknowledge receipt within SLA based on source channel
2. Validate the reported event through log analysis, system checks, and source verification
3. Determine if the event constitutes a security incident requiring response
4. Classify initial severity using the decision matrix in Section 5.2
5. Activate Incident Commander and response team based on severity
6. Create incident ticket in GRC platform with unique identifier
7. Initialize war room (Slack channel and video bridge) for SEV1/SEV2
8. Begin evidence preservation immediately upon incident declaration
9. Notify stakeholders per escalation matrix
10. Document initial facts, timeline, and decisions

Triage Timeline Requirements:

Severity	Triage Completion	IC Activation	War Room Active	Evidence Preservation
SEV1	15 minutes	Immediate	15 minutes	Immediate
SEV2	30 minutes	30 minutes	30 minutes	Within 1 hour
SEV3	4 hours	Business hours	As needed	Within 24 hours
SEV4	Next business day	Not required	Not required	As required

6.3 Phase 3: Investigation and Analysis

The investigation phase determines the scope, root cause, and impact of the incident while maintaining evidence integrity for potential legal proceedings or regulatory inquiries.

Investigation Activities:

Activity	Responsible Role	Timeline	Documentation Required
Scope determination	TIC and Security Lead	First 2 hours	Affected systems list, data categories, user accounts
Timeline reconstruction	Security Lead	First 4 hours	Attack timeline with timestamps and evidence
Attack vector analysis	Security Lead	First 8 hours	Entry point, exploitation method, tools used
Lateral movement analysis	Security Lead	First 8 hours	Systems accessed, credentials used, persistence mechanisms
Data impact assessment	Security Lead and Privacy	First 12 hours	Data types accessed, volume, exfiltration indicators
Attribution analysis	Security Lead	Ongoing	Threat actor indicators, TTPs, attribution confidence
Root cause analysis	TIC	Before closure	Technical and process failures, contributing factors

Evidence Collection and Preservation:

Evidence Type	Collection Method	Storage Location	Retention Period
System logs	Automated export to immutable storage; manual collection for ephemeral systems	Encrypted S3 bucket with versioning	3 years minimum
Memory dumps	Live memory acquisition using approved forensic tools	Encrypted forensic workstation	Until case closure + 3 years
Disk images	Full disk imaging for compromised systems	Encrypted external storage	Until case closure + 3 years
Network captures	PCAP from network taps and cloud flow logs	Encrypted storage	Until case closure + 1 year
Malware samples	Isolated collection with hashes verified	Air-gapped analysis environment	Indefinite (threat intel)
Screenshots	Timestamped captures of relevant findings	Case folder	Until case closure + 3 years
Interview notes	Written notes from involved parties	Legal-privileged storage	Until case closure + 7 years

All evidence handling follows documented chain of custody procedures with transfers logged and witnessed. Evidence is stored encrypted using AES-256 with access restricted to Security Engineering and Legal through role-based access controls.

6.4 Phase 4: Containment

Containment actions limit incident scope while preserving evidence and minimizing service disruption. The IC approves containment strategies balancing security requirements against business continuity.

Containment Strategy Selection:

Strategy	Use Case	Advantages	Disadvantages
Short-term containment	Stop active attack; preserve evidence for imaging	Rapid; evidence preserved	System remains compromised
Long-term containment	Maintain service while preparing eradication	Business continuity maintained	Extended exposure risk
Isolation containment	Remove system from network while investigating	Complete threat removal	Service disruption
Credential containment	Revoke compromised credentials and sessions	Targeted; minimal disruption	May alert attacker

Containment Action Library:

Action	Owner	SEV1 Target	SEV2 Target	Approval Required
Isolate affected EC2 instances	SRE	Less than 30 minutes	Less than 2 hours	TIC
Revoke compromised user credentials	Security	Less than 15 minutes	Less than 1 hour	TIC
Reset service account credentials	Security and SRE	Less than 1 hour	Less than 4 hours	IC
Block malicious IP addresses	Security	Less than 30 minutes	Less than 2 hours	TIC
Block malicious domains	Security	Less than 30 minutes	Less than 2 hours	TIC
Update WAF rules	Security	Less than 1 hour	Less than 4 hours	TIC
Disable compromised API keys	Security	Less than 15 minutes	Less than 1 hour	TIC
Isolate affected database	SRE	Less than 1 hour	Less than 4 hours	IC
Activate DDoS protection	SRE	Less than 15 minutes	Less than 30 minutes	TIC
Failover to disaster recovery region	SRE	Less than 4 hours	Per BCP	IC and CISO

6.5 Phase 5: Eradication

Eradication removes the root cause of the incident and eliminates attacker presence from affected systems.

Eradication Procedure:

1. Identify all compromised systems, accounts, and configurations through investigation
2. Develop eradication plan addressing each identified compromise vector
3. Schedule eradication actions to minimize service disruption
4. Remove malware, backdoors, and unauthorized access mechanisms
5. Reset credentials for affected accounts and service principals
6. Patch vulnerabilities exploited in the attack
7. Update security configurations to prevent reoccurrence
8. Verify eradication completeness through scanning and validation
9. Document all eradication actions for PIR and audit trail

Eradication Verification:

Verification Activity	Method	Success Criteria
Malware removal	Endpoint scan, memory analysis	No IOCs detected
Persistence removal	Registry, scheduled task, autorun analysis	No unauthorized persistence
Credential reset	Password and key rotation audit	All compromised credentials changed
Vulnerability remediation	Patch verification, configuration scan	Exploited vulnerabilities patched
Backdoor detection	Network monitoring, process analysis	No unauthorized network connections

6.6 Phase 6: Recovery

Recovery restores affected systems and services to normal operations while implementing enhanced monitoring to detect potential reoccurrence.

Recovery Procedure:

1. Confirm eradication completeness before recovery authorization
2. Develop recovery plan with prioritized restoration sequence
3. Restore systems from known clean backups or rebuild from infrastructure code
4. Validate system integrity through checksums and configuration verification
5. Implement enhanced monitoring for affected systems and attack indicators
6. Restore services incrementally with validation at each phase
7. Verify data integrity for restored customer data
8. Monitor for reinfection indicators for 30 days post-recovery
9. Document recovery actions and any data loss for customer notification

Recovery Timeline Targets:

System Tier	RTO Target	Recovery Method	Validation Requirements
Tier 1 Critical	4 hours	Hot standby failover or rapid rebuild	Full functional testing; data integrity verification
Tier 2 Significant	8 hours	Backup restoration or rebuild	Core function testing; sample data verification
Tier 3 Standard	24 hours	Standard restoration procedures	Basic function testing

6.7 Phase 7: Notification and Communication

Timely and accurate notification maintains stakeholder trust and satisfies regulatory requirements. All external communications require IC and Legal approval before distribution.

Customer Notification Requirements:

Scenario	Notification Timeline	Channel	Content Requirements
SEV1 with confirmed customer data impact	Within 24 hours of confirmation	Email to account administrators; status page; enterprise CSM outreach	Nature of incident; data categories affected; actions taken; recommended customer actions; contact information
SEV2 with potential customer data risk	Within 48 hours	Email to account administrators; status page	Nature of incident; ongoing investigation; protective measures; contact information
SEV3/SEV4 with individual customer impact	Within 72 hours	Email to affected users; in-app notification	Nature of incident; recommended actions; support contact
Service availability impact	Within 1 hour of confirmed impact	Status page; automated email for affected services	Service affected; expected resolution; workaround if available

Regulatory Notification Matrix:

Regulation	Jurisdiction	Notification Timeline	Threshold	Responsible Party	Required Content
GDPR Article 33	EU/EEA	72 hours from awareness	Risk to rights and freedoms	Privacy Officer	Nature, categories, approximate numbers, consequences, measures
GDPR Article 34	EU/EEA	Without undue delay	High risk to individuals	Privacy Officer	Clear language description and recommendations
HIPAA/HITECH	United States	60 days to covered entity; 60 days to HHS if over 500	Unsecured PHI breach	Privacy Officer and Legal	Per HHS breach notification requirements
CCPA/CPRA	California	Most expedient time possible	California residents' personal information	Privacy Officer	Categories, circumstances, contact information
State breach laws	US states (varies)	30-60 days depending on state	State-specific PII definitions	Legal	State-specific requirements
UK GDPR	United Kingdom	72 hours	Same as GDPR	Privacy Officer via EU Representative	Same as GDPR
Contractual (Enterprise)	Per agreement	Per agreement (typically 24-48 hours)	Per agreement	Customer Success	Per agreement

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7. Incident Response Infrastructure

Acme Cloud maintains dedicated infrastructure, tools, and resources enabling rapid and effective incident response.

7.1 Communication Infrastructure

System	Primary Use	Backup	Access Control
Slack	Primary internal coordination; dedicated incident channels	Phone bridge; SMS alerts	IR team members; MFA required
Zoom	War room video conferencing	Google Meet; phone bridge	IR team members
PagerDuty	On-call alerting and escalation	SMS and phone fallback	On-call personnel
Status page	Customer communication	Direct email; support portal	Communications team
Email	Formal notifications and documentation	Backup email provider	IR team members
Phone bridge	Executive communications; offline backup	Mobile phones	All IR team members

7.2 Security Monitoring and Detection

Tool	Purpose	Data Sources	Alert Integration
Datadog Security Monitoring	Primary SIEM; log aggregation; correlation	Cloud logs, application logs, endpoint logs, network flows	PagerDuty; Slack
CrowdStrike Falcon	Endpoint detection and response; threat hunting	Endpoint telemetry, process execution, file activity	Datadog; PagerDuty
AWS GuardDuty	Cloud infrastructure threat detection	VPC flow logs, DNS logs, CloudTrail	Datadog
AWS Security Hub	Security posture and compliance monitoring	AWS services, third-party tools	Datadog
Cloudflare	DDoS protection; WAF; bot management	HTTP traffic, DNS queries	PagerDuty; Slack

7.3 Forensic and Investigation Tools

Tool	Purpose	Access Control
Forensic workstations	Malware analysis; memory analysis; disk imaging	Security Engineering only; air-gapped
Velociraptor	Endpoint investigation; artifact collection	Security Engineering; audit logged
YARA	Malware signature detection and hunting	Security Engineering
VirusTotal Enterprise	Threat intelligence; sample analysis	Security team
Shodan	External reconnaissance; exposure validation	Security team

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8. Testing and Training Program

Regular testing and training ensure response readiness and identify improvement opportunities before real incidents occur.

8.1 Exercise Schedule

Exercise Type	Frequency	Last Conducted	Next Scheduled	Participants	Objectives
Tabletop exercise (executive)	Annual	November 2025	November 2026	Executive team, CMT, Legal	Decision-making, communication, escalation
Tabletop exercise (technical)	Quarterly	January 2026	April 2026	Security Engineering, SRE	Procedure validation, tool proficiency
Technical simulation (ransomware)	Annual	September 2025	September 2026	Security, SRE, Engineering	End-to-end response, recovery validation
Technical simulation (data breach)	Annual	October 2025	October 2026	Security, Privacy, Legal	Investigation, notification, evidence
Red team exercise	Annual	June 2025	June 2026	External red team, Security	Detection, response under realistic conditions
Customer notification drill	Annual	October 2025	October 2026	Communications, CS, Legal	Communication effectiveness, timing
Contact tree verification	Quarterly	January 2026	April 2026	All IR team members	Contact accuracy, response time
On-call certification	Quarterly	January 2026	April 2026	On-call engineers	Procedure knowledge, tool proficiency

8.2 Training Requirements

Role	Training Requirement	Frequency	Delivery Method
All employees	Security awareness including incident reporting	Annual	Online module
Security Engineering	Incident handler certification (GCIH or equivalent)	Initial plus continuing education	External training
Security Engineering	Forensic investigation techniques	Annual	Internal and external
SRE	Infrastructure incident response procedures	Annual	Internal tabletop
On-call engineers	Severity classification and escalation	Quarterly	Internal workshop
Legal and Privacy	Breach notification requirements	Annual	External legal briefing
Communications	Crisis communication	Annual	PR agency workshop
Customer Success	Customer incident communication	Annual	Internal training
Executive team	Crisis decision-making	Annual	Tabletop exercise

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9. Post-Incident Review Process

Post-Incident Reviews transform incident experiences into lasting security improvements through structured analysis, documented findings, and tracked remediation.

9.1 PIR Requirements

Severity	PIR Required	Timeline	Participants	Documentation
SEV1	Mandatory	Within 5 business days of closure	All response participants; executive sponsor	Full PIR report; Board summary
SEV2	Mandatory	Within 10 business days of closure	Core response team; affected teams	Full PIR report; CISO review
SEV3	Required	Within 15 business days of closure	Security Engineering lead	PIR summary
SEV4	Optional	Monthly batch review	Security Operations	Trends analysis

9.2 PIR Content Requirements

Section	Content	Owner
Incident summary	Event description, impact, duration, affected parties	IC
Timeline	Chronological sequence of events, actions, and decisions	Scribe
Root cause analysis	Technical and process failures enabling the incident	TIC
Contributing factors	Environmental, organizational, and process factors	TIC
Detection analysis	How was the incident detected; could detection have been faster	Security Lead
Response effectiveness	What worked well; what could be improved	IC
Control failures	Which existing controls failed or were insufficient	Security Lead
Remediation items	Specific actions to prevent recurrence with owners and deadlines	IC
Lessons learned	Key takeaways for future response and prevention	IC
Customer impact	Summary for customer communication if applicable	Communications

9.3 Remediation Tracking

Priority	Remediation Timeline	Tracking	Verification
Critical	14 days	CISO weekly review	Security Engineering validation
High	30 days	CISO bi-weekly review	Security Engineering validation
Medium	60 days	Monthly metrics review	GRC audit
Low	90 days	Quarterly metrics review	GRC audit

All SEV1/SEV2 remediation items are tracked in the GRC platform with CISO visibility until closure. FY2025 PIR remediation: 23 control improvements, 8 playbook updates, 4 new detection rules, 2 vendor contract amendments.

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10. Playbook Library

Acme Cloud maintains detailed incident response playbooks for common incident scenarios. Playbooks are reviewed annually and updated within 14 days of related PIR findings.

10.1 Available Playbooks

Playbook	Scenario	Last Updated	Key Procedures
Ransomware	Ransomware infection in any environment	January 2026	Isolation, backup verification, decryption assessment, law enforcement
Credential Compromise	Stolen or leaked credentials	January 2026	Scope determination, credential reset, session termination
Data Exfiltration	Confirmed or suspected data theft	January 2026	Evidence preservation, impact assessment, notification
DDoS Attack	Volumetric or application-layer DDoS	January 2026	Cloudflare activation, traffic analysis, origin protection
Insider Threat	Malicious or negligent insider activity	January 2026	Evidence preservation, HR coordination, access termination
Supply Chain	Compromised vendor or dependency	January 2026	Impact assessment, vendor coordination, component isolation
Phishing Campaign	Targeted phishing against employees	January 2026	Credential audit, email analysis, awareness communication
Cloud Compromise	AWS account or resource compromise	January 2026	IAM analysis, resource isolation, credential rotation
AI Incident	AI-specific security events	January 2026	Model isolation, prompt analysis, training data review
Physical Security	Physical facility or device incidents	January 2026	Law enforcement, access control, device wipe

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11. External Coordination

Acme Cloud maintains relationships and procedures for coordination with external parties during incident response.

11.1 External Partnerships

Partner Type	Organization	Relationship	Activation Criteria
External forensics	Mandiant	Retainer (2-hour response SLA)	SEV1 incidents; complex investigations
Cyber insurance	Carrier (confidential)	Active policy	Incidents potentially covered
Legal counsel	External law firm	Retainer	Regulatory notification; litigation risk
Law enforcement	FBI, local authorities	Established contacts	Significant criminal activity
Cloud provider	AWS security support	Enterprise support	Infrastructure-level incidents
Threat intelligence	IT-ISAC	Member	Threat sharing, coordinated defense
Regulatory counsel	Jurisdiction-specific	Retainer	Breach notification guidance

11.2 Law Enforcement Engagement

Law enforcement engagement requires CEO and Legal approval except in cases of imminent physical danger. Considerations for engagement include: severity of criminal activity, evidence preservation requirements, regulatory expectations, and potential investigation impact on business operations.

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12. Metrics and Continuous Improvement

Incident response effectiveness is measured through defined metrics reported to CISO monthly and Board Audit Committee quarterly.

12.1 Key Performance Indicators

Metric	Target	FY2025 Actual	Trend
SEV1 incidents	0	0	Stable
SEV2 incidents	Less than 4	1	Improved
Mean Time to Detect (SEV1/SEV2)	Less than 30 minutes	47 minutes	Needs improvement
Mean Time to Contain (SEV1/SEV2)	Less than 4 hours	2.3 hours	Exceeds target
Customer notification SLA compliance	100%	100%	Meets target
PIR completion within SLA	100%	100%	Meets target
PIR remediation closure within SLA	100%	100%	Meets target
Exercise completion	100%	100%	Meets target
On-call certification	100%	100%	Meets target

12.2 FY2026 Improvement Initiatives

Initiative	Objective	Timeline	Owner
MTTD improvement	Reduce MTTD to under 15 minutes for SEV1/SEV2	Q2 2026	Security Engineering
Automated notification	Implement automated customer notification templates	Q1 2026	Communications and Engineering
AI incident detection	Deploy AI-enhanced anomaly detection	Q3 2026	Security Engineering
Forensic automation	Automate evidence collection for common scenarios	Q2 2026	Security Engineering
EU AI Act preparation	Update playbooks for AI-specific regulatory requirements	Q4 2026	Legal and Security

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13. Framework Compliance Mapping

Requirement	SOC 2 TSC	ISO 27001:2022	NIST CSF	HIPAA	Implementation Reference
Incident detection	CC7.2	A.5.25	DE.CM	§164.308(a)(1)(ii)(D)	Section 6.1
Incident response planning	CC7.3	A.5.24	RS.RP	§164.308(a)(6)(i)	This document
Incident analysis	CC7.4	A.5.26	RS.AN	§164.308(a)(6)(ii)	Section 6.3
Incident containment	CC7.4	A.5.26	RS.MI	§164.308(a)(6)(ii)	Section 6.4
Incident recovery	CC7.5	A.5.27	RC.RP	§164.308(a)(7)	Section 6.6
Incident notification	CC2.3	A.5.26	RS.CO	§164.308(a)(6)(ii)	Section 6.7
Post-incident learning	CC7.5	A.5.27	RS.IM	§164.308(a)(6)(ii)	Section 9
Incident testing	CC7.4	A.5.24	RS.RP	§164.308(a)(6)(ii)	Section 8

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Related Trust Center documents

vulnerability disclosure, business continuity, backup recovery, security overview, encryption standards, access control, data retention, hipaa statement, compliance frameworks

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Document revision history

Version	Date	Author	Summary of changes
1.0	2024-06-01	Legal & Compliance	Initial Trust Center publication
2.0	2025-03-15	GRC Program	SOC 2 Type II alignment refresh; expanded subprocessors
2.5	2025-09-01	Security Engineering	Encryption standards update; ISO 27001 mapping
3.0	2026-01-15	Trust Center Program	Full procurement-grade expansion; 34-document set

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Contact

Acme Cloud, Inc. 1200 Market Street, Suite 400 San Francisco, CA 94103, USA

Channel	Email	Use case
Trust & procurement	trust@acmecloud.com	Security questionnaires, trust reviews
Security	security@acmecloud.com	Incidents, vulnerabilities, control questions
Privacy	privacy@acmecloud.com	DSRs, privacy assessments
Legal	legal@acmecloud.com	Contractual, DPA, legal notices

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Report an incident: security@acmecloud.com (24/7 monitored) Customer trust inquiries: trust@acmecloud.com Status updates: status.acmecloud.com