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Evidence request lists

SOC 1 (SSAE 18 / ISAE 3402)

Evidence request list. 32 controls, 32 carrying auditor artefact guidance. Generated from the compliance knowledge graph on 12 September 2026. Published by The Art of Service.

Backup and Recovery

CO-Backup-1
Backup Execution

Backups of in-scope financial system data are performed according to documented schedules and retention requirements

Artefacts an auditor will ask for
  • Backup policy
  • Backup schedule documentation
Where this commonly fails
  • Backup jobs fail silently without alerting to operations
  • Scope of backups excludes critical application databases or configuration data
  • Backup schedules not aligned to data criticality or RPO requirements
  • Job completion evidence not retained for the audit period
  • No documented owner accountable for daily backup status review
CO-Backup-2
Backup Restoration Testing

Backup restoration is tested periodically to verify recoverability of in-scope data

Artefacts an auditor will ask for
  • Restoration test procedure
  • Annual test plan
Where this commonly fails
  • Restoration tests performed only on non production data sets
  • Test cadence informal and not consistently executed each period
  • Test results not formally documented with pass or fail conclusions
  • Restored data integrity not validated against source
  • No remediation tracking when restoration tests fail
CO-Backup-3
Backup Offsite Storage and Encryption

Backups of in-scope data are stored at offsite or alternate locations and protected by encryption

Artefacts an auditor will ask for
  • Backup storage standard
  • Encryption standard
Where this commonly fails
  • Offsite copies stored in the same availability zone as primary
  • Encryption keys for backup media not rotated or escrowed
  • Tape or media transport chain of custody not documented
  • Cloud backup buckets lack object lock or immutability settings
  • Key management responsibilities not separated from backup operations

Change Management

CO-ChangeMgmt-1
Change Authorization and Approval

Changes to in-scope production systems are authorized and approved by appropriate stakeholders before implementation

Artefacts an auditor will ask for
  • Change management policy
  • Change request template
  • Change Advisory Board (CAB) charter
Where this commonly fails
  • Standard changes bypass formal approval without defined criteria
  • Approver delegations not documented and approvers self approve
  • Approval evidence not captured in the ticketing system
  • Business impact and risk assessment fields left blank on tickets
  • Approvals occur after deployment to production
CO-ChangeMgmt-2
Change Testing

Production changes are tested in non-production environments and test results are documented and approved before deployment

Artefacts an auditor will ask for
  • Testing standard
  • Test plan template
Where this commonly fails
  • Test cases not aligned to change scope or risk
  • User acceptance testing skipped for production fixes
  • Test results not retained or linked to the change record
  • Regression testing absent for shared platforms
  • No test environment parity with production
CO-ChangeMgmt-3
Segregation of Duties in Change Deployment

Developers cannot deploy their own changes to production; deployment is performed by separate personnel or automated pipelines with controls

Artefacts an auditor will ask for
  • SoD policy for SDLC
  • Deployment procedure
Where this commonly fails
  • Developers retain standing production deployment access
  • Break glass deployment accounts shared across staff
  • Pipeline service accounts unrestricted and unmonitored
  • No compensating review when SoD cannot be enforced
  • Audit logs of deployer identity not retained
CO-ChangeMgmt-4
Emergency Change Management

Emergency changes follow an expedited but documented approval process and receive retroactive review

Artefacts an auditor will ask for
  • Emergency change procedure
Where this commonly fails
  • Emergency change definition overly broad and overused
  • Post implementation review not completed within defined window
  • Retroactive approvals lack independent reviewer
  • Emergency change population not reconciled to ticketing data
  • No metrics tracking volume or root cause of emergency changes
CO-ChangeMgmt-5
Infrastructure and Database Change Control

Changes to infrastructure components and databases supporting in-scope financial systems follow the change management process

Artefacts an auditor will ask for
  • Infrastructure change procedure
  • Database change standard
Where this commonly fails
  • Direct database changes performed outside the ticketing process
  • Infrastructure as code drift not detected or remediated
  • Privileged DBA accounts not reviewed for change activity
  • Schema changes not captured with before and after evidence
  • Configuration baselines for infrastructure not defined

Computer Operations

CO-ComputerOps-1
Job Scheduling and Monitoring

Batch jobs supporting financial processing are scheduled, executed, and monitored; failures are identified and resolved timely

Artefacts an auditor will ask for
  • Job scheduling procedure
  • Batch job inventory and runbook
Where this commonly fails
  • Batch job failures not routed to a monitored queue
  • No documented runbook for recurring failed jobs
  • Schedule changes occur without change ticket coverage
  • Dependencies between jobs undocumented
  • Stale or obsolete jobs remain enabled in the scheduler
CO-ComputerOps-2
Problem and Incident Management

Operational incidents affecting in-scope systems are identified, logged, prioritized, resolved, and reviewed

Artefacts an auditor will ask for
  • Incident management policy
  • Incident priority matrix
Where this commonly fails
  • No distinction between incident and problem records
  • Root cause analyses not completed for repeating incidents
  • Severity classification inconsistent across teams
  • Customer impacting incidents not communicated to stakeholders
  • Lessons learned not fed back into preventive controls
CO-ComputerOps-3
Capacity and Performance Monitoring

System capacity and performance metrics are monitored and reviewed to ensure in-scope systems meet operational requirements

Artefacts an auditor will ask for
  • Capacity management procedure
Where this commonly fails
  • Thresholds set too low generating alert fatigue
  • Capacity plan not refreshed against business forecasts
  • Performance baselines not established for critical systems
  • Trend reports not reviewed by accountable management
  • No action tracking when thresholds are breached

Data Integrity / Processing

CO-DataIntegrity-1
Data Input and Processing Integrity

Input validation, processing controls, and reconciliations ensure financial data is processed completely and accurately

Artefacts an auditor will ask for
  • Data processing control documentation
  • Reconciliation procedure
Where this commonly fails
  • Input validations bypassed by privileged users
  • Reconciliation totals not retained as audit evidence
  • Error queues not worked within defined timeframes
  • Manual journal entries lack independent review
  • Calculation logic changes deployed without recertification
CO-DataIntegrity-2
Interface and File Transfer Controls

Data interfaces and file transfers to and from in-scope systems are monitored for completeness, accuracy, and authenticity

Artefacts an auditor will ask for
  • Interface design documentation
  • File transfer standard
Where this commonly fails
  • Hash or record count checks not performed on inbound files
  • Failed transfers retried without operator review
  • Sensitive files transmitted over unencrypted channels
  • Interface monitoring lacks alerting for missed runs
  • No documented data dictionary for interface payloads

Incident Response

CO-Incident-1
Incident Response Plan

A documented incident response plan addresses security incidents affecting in-scope financial systems

Artefacts an auditor will ask for
  • Incident response plan
  • IR roles and responsibilities matrix
  • Communication plan
Where this commonly fails
  • Plan not tested through tabletop or live exercises annually
  • Roles and contacts within the plan are stale
  • Escalation thresholds undefined or inconsistent
  • Plan not aligned to regulatory notification timelines
  • No post incident metrics tracked at executive level
CO-Incident-2
Security Incident Detection and Response

Security incidents impacting financial-system integrity are detected, escalated, contained, and remediated per the IR plan

Artefacts an auditor will ask for
  • IR runbooks
  • Escalation matrix
Where this commonly fails
  • Detection rules not tuned for the current environment
  • Mean time to detect and respond not measured
  • Forensic evidence preservation procedures absent
  • No 24x7 coverage or on call rotation defined
  • Threat intelligence not integrated into detection logic

Logical Access

CO-LogicalAccess-1
User Access Provisioning

New user access to in-scope financial systems is approved and provisioned based on documented authorization aligned with job responsibilities

Artefacts an auditor will ask for
  • Access provisioning procedure
  • New hire access request form
  • Approval workflow documentation
  • Role-to-system mapping matrix
Where this commonly fails
  • Access requests approved without documented business need
  • Role definitions overly broad granting excessive entitlements
  • Joiner workflow not synchronized with HR start dates
  • Approvers and requesters are the same person in some cases
  • Provisioning evidence not retained for the audit period
CO-LogicalAccess-2
User Access Termination

Access to in-scope systems is revoked timely upon termination or role change to prevent unauthorized financial transactions

Artefacts an auditor will ask for
  • Termination procedure
  • HR offboarding checklist
  • Access removal SLA documentation
Where this commonly fails
  • Termination notifications delayed beyond same business day
  • Contractor and third party accounts not included in leaver process
  • Federated identities orphaned after directory cleanup
  • No periodic reconciliation between HR and access systems
  • Shared accounts not rotated after staff departure
CO-LogicalAccess-3
Periodic User Access Review

User access to financially relevant systems is reviewed periodically by system owners to confirm continued appropriateness

Artefacts an auditor will ask for
  • User access review procedure
  • Review schedule and scope documentation
  • Review certification template
Where this commonly fails
  • Reviews rubber stamped without meaningful evaluation
  • Privileged and service accounts excluded from scope
  • Review cadence inconsistent across in scope systems
  • Remediation actions not tracked to closure
  • Reviewer independence from the access population not maintained
CO-LogicalAccess-4
Privileged Access Management

Privileged and administrative access to in-scope systems is restricted, approved, monitored, and reviewed

Artefacts an auditor will ask for
  • Privileged access policy
  • Privileged role inventory
  • PAM tool configuration documentation
Where this commonly fails
  • Standing privileged access in place rather than just in time
  • Session recordings not enabled or reviewed
  • Privileged account inventory incomplete
  • Password vault not enforced for all privileged credentials
  • No separate identity for administrative versus daily use
CO-LogicalAccess-5
Password and Authentication Configuration

Authentication configurations for in-scope systems enforce password complexity, length, expiration, and lockout aligned with policy

Artefacts an auditor will ask for
  • Password policy
  • Authentication standard
Where this commonly fails
  • Password policy not enforced consistently across all systems
  • Service accounts exempt from rotation without compensating control
  • Legacy authentication protocols still enabled
  • Account lockout thresholds set too lenient
  • Configuration drift from baseline not detected
CO-LogicalAccess-6
Multi-Factor Authentication

Multi-factor authentication is enforced for remote access and privileged access to in-scope systems

Artefacts an auditor will ask for
  • MFA policy
  • Remote access standard
Where this commonly fails
  • MFA bypass exceptions granted without expiry
  • SMS used as the only second factor for privileged users
  • Legacy clients exempted from MFA enforcement
  • Inherited or persistent sessions weaken MFA value
  • No alerting on repeated MFA failures or push fatigue patterns
CO-LogicalAccess-7
Segregation of Duties in Financial Systems

Conflicting duties within financially relevant applications are segregated to prevent a single user from initiating and approving the same transaction

Artefacts an auditor will ask for
  • Segregation of duties matrix
  • Role definition documentation
Where this commonly fails
  • SoD ruleset not documented or maintained
  • Conflicting roles assigned to single users without mitigation
  • Mitigating controls exist but are not evidenced or reviewed
  • Custom roles bypass standard SoD analysis
  • No periodic SoD violation reporting to finance leadership

Monitoring

CO-Monitoring-1
Security Event Logging

Security-relevant events on in-scope systems are logged, retained, and protected from unauthorized modification

Artefacts an auditor will ask for
  • Logging and monitoring standard
  • Log retention schedule
Where this commonly fails
  • Critical systems do not forward logs to central collection
  • Log retention falls short of regulatory requirements
  • Log integrity protections such as write once storage missing
  • Time synchronization across sources inconsistent
  • Audit log access not restricted or reviewed
CO-Monitoring-2
Intrusion Detection and Alerting

Intrusion detection and security alerting mechanisms monitor in-scope systems and generate alerts for investigation

Artefacts an auditor will ask for
  • Detection rule documentation
  • Alert tuning procedure
Where this commonly fails
  • Detection coverage limited to perimeter with no internal sensors
  • Alert triage SLAs not defined or not measured
  • False positive tuning not performed regularly
  • Out of hours coverage absent or undocumented
  • Integration with incident response workflows incomplete
CO-Monitoring-3
Vulnerability Management

Vulnerabilities on in-scope systems are identified through scanning, prioritized, and remediated within defined SLAs

Artefacts an auditor will ask for
  • Vulnerability management policy
  • Remediation SLA matrix
Where this commonly fails
  • Authenticated scans not used leaving findings shallow
  • Remediation SLAs by severity not defined or enforced
  • Risk acceptances lack documented rationale and expiry
  • Asset inventory used for scanning is incomplete
  • Exception backlog grows without executive visibility

New Development

CO-NewDev-1
System Development Life Cycle (SDLC)

New development of in-scope systems follows a documented SDLC including requirements, design, development, testing, and deployment

Artefacts an auditor will ask for
  • SDLC policy
  • SDLC gates documentation
Where this commonly fails
  • SDLC documentation not updated for current delivery model
  • Security and privacy requirements not integrated into design
  • Stage gate evidence inconsistent across teams
  • No defined criteria for production readiness
  • Third party components introduced without review
CO-NewDev-2
Secure Coding and Code Review

Code changes to in-scope systems receive peer review and security scanning before merge to production branches

Artefacts an auditor will ask for
  • Secure coding standard
  • Code review policy
Where this commonly fails
  • Code review requirements bypassed under deadline pressure
  • Static analysis findings not triaged or tracked
  • Secrets detected in source repositories without remediation
  • Developers lack secure coding training records
  • Dependency vulnerabilities not blocked at the pipeline

Other ICFR-relevant

CO-Other-1
Risk Assessment for ICFR

A risk assessment process identifies risks to in-scope financial processing and informs the design of controls

Artefacts an auditor will ask for
  • Risk assessment policy
  • Risk register
Where this commonly fails
  • Risk assessment performed only at scoping rather than continuously
  • Process changes not reassessed for ICFR impact
  • Fraud risk factors not explicitly considered
  • IT risks not linked to financial assertions
  • Results not communicated to control owners

Physical Access

CO-PhysicalAccess-1
Data Center Physical Access Restriction

Physical access to data centers hosting in-scope systems is restricted to authorized personnel

Artefacts an auditor will ask for
  • Physical access policy
  • Data center access procedure
Where this commonly fails
  • Visitor escort policy not consistently enforced
  • Badge access lists not reconciled to HR records
  • Subservice data center reports not obtained or reviewed
  • Tailgating not addressed by physical controls
  • Termination of physical access lags logical termination
CO-PhysicalAccess-2
Physical Access Review

Physical access rights to data centers and restricted areas are reviewed periodically by responsible owners

Artefacts an auditor will ask for
  • Physical access review procedure
Where this commonly fails
  • Reviews conducted by personnel lacking site knowledge
  • Privileged badge holders not separately reviewed
  • Review frequency exceeds policy interval
  • Remediation of revoked access not tracked to completion
  • No reconciliation to terminated employee population

Vendor Management

CO-Vendor-1
Subservice Organization Monitoring

Subservice organizations (cloud hosting, key SaaS) supporting in-scope systems are monitored through SOC reports or equivalent assurance

Artefacts an auditor will ask for
  • Vendor management policy
  • Subservice organization list and carve-out/inclusive method documentation
Where this commonly fails
  • SOC reports not reviewed within required timeframe
  • Bridge letters not obtained to cover audit period
  • Identified exceptions not assessed for impact on user entity
  • No defined owner for subservice monitoring
  • Complementary subservice controls not mapped to user controls
CO-Vendor-2
Complementary User Entity Controls (CUEC) Communication

The service organization communicates complementary user entity controls that customers must implement for the service organization controls to be effective

Artefacts an auditor will ask for
  • CUEC list
  • Customer-facing documentation
Where this commonly fails
  • CUECs not published clearly in contracts or trust documentation
  • Customer assumptions about service responsibilities misaligned
  • No process to confirm customer implementation of CUECs
  • CUECs not updated when service offering evolves
  • Sales and onboarding teams unaware of CUEC obligations
Assembled from the framework's own control set. Every line traces to a control in the graph, so this pack is regenerated rather than written, and stays current as the graph does.

Assembled from the framework’s own control set, so this list is regenerated rather than written and stays current as the graph does.