Soc2 Privacy Audit

Evidence Collection Timeline

Month 1-2 (Pre-Examination Period):

• Establish evidence repository with access controls
• Create evidence request list mapped to each P-criterion
• Assign evidence owners for each control
• Conduct readiness assessment against all P-criteria

Months 3-8 (During Examination Period):

• Collect operational evidence continuously (DSAR logs, deletion records, consent records)
• Maintain running evidence calendar with monthly evidence capture checkpoints
• Document all exceptions and compensating controls
• Conduct mid-period self-assessment at month 5

Month 9-10 (Pre-Audit Preparation):

• Complete evidence gap analysis against auditor's request list
• Prepare evidence binders (physical or digital) organized by criterion
• Pre-review all evidence for completeness and consistency
• Prepare key personnel for auditor interviews

Sample Population Testing

SOC 2 auditors test controls using sampling methodologies based on AICPA AU-C Section 530:

For privacy controls, common populations tested include:

• DSAR processing records (testing response timeliness and completeness)
• Consent records (testing capture and withdrawal mechanisms)
• Third-party DPAs (testing completeness and signature)
• Data deletion records (testing timeliness per retention schedule)
• Privacy complaint records (testing investigation and resolution)

Control Testing Procedures

Inquiry

The auditor interviews control owners and operators to understand how the control operates in practice:

• Privacy Officer: Overall privacy program governance, policy management, risk assessment
• IT Security: Encryption, access controls, logging, incident response
• Legal: DPA management, privacy notice updates, regulatory monitoring
• Customer Support: DSAR handling, complaint management, consent processes
• HR: Employee training, disciplinary procedures, onboarding privacy requirements

Observation

The auditor observes controls in operation:

• Walkthrough of DSAR intake and fulfillment process
• Demonstration of consent management platform
• Demonstration of data deletion/anonymization processes
• Walkthrough of privacy complaint handling
• Demonstration of access control review process

Inspection

The auditor examines evidence artifacts:

• Privacy notice versions and change logs
• DSAR tracking spreadsheets or ticketing system records
• Consent database records with timestamps
• Data deletion job execution logs
• Third-party DPA repository
• Privacy training completion records
• Privacy committee meeting minutes
• Privacy risk assessment documentation

Reperformance

The auditor independently reperforms a control to verify its effectiveness:

• Submit a test DSAR and verify the response process
• Verify that retention period expiry triggers automated deletion
• Verify that access controls prevent unauthorized access to personal information
• Verify that privacy notice accurately reflects current processing activities

Report Review

Management Assertion

The service organization's management provides a written assertion that:

1. The system description is fairly presented
2. Controls were suitably designed (Type I and II)
3. Controls operated effectively throughout the examination period (Type II)

Auditor's Opinion

The auditor's report contains:

• Unqualified (clean) opinion: Controls were suitably designed and operated effectively
• Qualified opinion: One or more exceptions noted but controls are generally effective
• Adverse opinion: Significant deficiencies exist in control design or operation
• Disclaimer of opinion: Sufficient evidence could not be obtained

Exception Handling

When the auditor identifies exceptions during testing:

1. Deviation: A single instance where a control did not operate as designed (e.g., one DSAR exceeded the 30-day response window). The auditor documents the deviation and evaluates whether it represents a systematic failure.
2. Exception: A pattern of deviations or a significant individual deviation. Exceptions are described in the report with management's response.
3. Modified Opinion Threshold: Typically 3+ exceptions in a single control or exceptions across multiple controls in the same criterion may result in a qualified opinion for that criterion.

User Entity Considerations (Complementary User Entity Controls — CUECs)

The SOC 2 report identifies controls that user entities (customers) must implement for the system of controls to be effective. Privacy-related CUECs commonly include:

• User entities are responsible for providing accurate personal information to the service organization
• User entities are responsible for reviewing and approving data processing purposes
• User entities are responsible for obtaining consent from their own data subjects before providing personal information to the service organization
• User entities are responsible for notifying the service organization of DSARs that require the service organization's assistance

SOC 2 Privacy vs. GDPR Comparison

Sentinel Compliance Group SOC 2 Privacy Implementation

Sentinel Compliance Group maintains an annual SOC 2 Type II examination (12-month period, January 1 — December 31) including the Privacy TSC alongside Security and Confidentiality:

• Examination Period: January 1, 2025 — December 31, 2025
• Auditor: Deloitte & Touche LLP
• Criteria Included: Security (CC), Confidentiality (C), Privacy (P)
• Controls Tested: 142 total controls, 38 Privacy-specific
• Result: Unqualified opinion with zero exceptions for Privacy criteria
• Key Metrics During Period: 847 DSARs processed (average response time: 12 days), 0 privacy complaints unresolved beyond 30 days, 100% employee privacy training completion, 4 privacy notice updates published
• Bridge Letter: Issued quarterly to address the gap between examination period end and report issuance (typically 8-12 weeks after period end)