Free template · Updated May 2026
Data Protection Impact Assessment: Whistleblower Channel
A GDPR Article 35 DPIA template covering all eight Article 35(7) elements: systematic description, purposes, necessity and proportionality, risks, safeguards, consultation, codes of conduct, and review.
Cover sheet
| Controller | [Organisation], [registered office] |
| Processing activity | Internal whistleblower channel under EU Directive 2019/1937 and the national transposition |
| DPO | [Name], [contact] |
| Date of this DPIA | [yyyy-mm-dd] |
| Version | [n.n] |
| Next scheduled review | [yyyy-mm-dd] |
1. Systematic description of processing operations (Art. 35(7)(a))
1.1 Categories of personal data
- Free-text report content submitted by the reporter (potentially containing identifiers, allegations, and special category data).
- Attachments uploaded by the reporter (documents, audio, images, video; EXIF stripped on ingest).
- Pseudonyms voluntarily chosen by reporters.
- Case codes (server-generated, not derived from personal data).
- Case metadata (status, category, severity, assigned investigator, timestamps).
- Staff identity for case handlers (identity-provider-managed).
- Audit log entries (staff identity, action, IP address, user-agent, timestamp).
1.2 Categories of data subjects
- Reporters (employees, contractors, suppliers, board members, volunteers, applicants).
- Subjects of reports (named within report content).
- Third parties mentioned within report content.
- Case handlers (staff).
1.3 Data flows
Reporter submits via [channel URL]; content arrives at the application backend hosted by [hosting provider, region]; attachments stored in object storage with per-object encryption; case handlers access via [admin URL] authenticated by [identity provider]; AI summarisation is invoked per case at the case handler's option through [AI provider].
2. Purposes and legal basis (Art. 35(7)(b))
- Operating a whistleblower channel as required by [national transposition of Directive 2019/1937].
- Investigating reports of breaches.
Legal basis: GDPR Article 6(1)(c) (compliance with a legal obligation under whistleblower-protection law). For special category data voluntarily disclosed by the reporter, Article 9(2)(b) (employment and social-protection law) combined with the national whistleblower act.
3. Necessity and proportionality (Art. 35(7)(b))
Processing is necessary by reference to Articles 8-9 and 18 of Directive (EU) 2019/1937. Proportionality is achieved through data minimisation:
- No IP capture from reporters; IP stripped at ingress.
- No email capture from reporters by default.
- EXIF stripped from uploaded images.
- Free-text fields not indexed for search outside the tenant.
- Audit log entries limited to events necessary to demonstrate compliance.
4. Risks to the rights and freedoms of data subjects (Art. 35(7)(c))
| Risk | Likelihood | Impact |
|---|---|---|
| Re-identification of an anonymous reporter through contextual report content | Medium | High |
| Disclosure of third-party identity within the report | High | Medium |
| Special category data (health, sexual orientation, political opinion) disclosure | Medium | High |
| Disclosure compelled by judicial order | Low | High |
| Insider abuse of access by an authorised staff member | Low-medium | High |
| Personal data breach affecting case data | Low | High |
| AI feature misclassification influencing employment decisions | Low | Medium |
5. Safeguards and mitigations (Art. 35(7)(d))
| Risk | Mitigation |
|---|---|
| Contextual re-identification | Reporter onboarding warns about contextual identification; UI offers review-and-redact step; case handlers trained to flag contextual risk at acknowledgement. |
| Third-party identification | Article 16 confidentiality applies to third parties; case handlers trained; outputs use pseudonyms by default. |
| Special category disclosure | Article 9(2)(b) basis documented; access restricted to primary investigator and escalation chain; retention shortened for special category content after closure. |
| Compelled disclosure | Documented procedure: verify the order with counsel, narrow scope, notify reporter where permitted, log in the audit log with legal basis. |
| Insider abuse | Role-based access enforcing least privilege; daily audit-log export to WORM bucket separate from the application; quarterly access reviews; DPO sampling of case access logs. |
| Personal data breach | Encryption in transit (TLS 1.3) and at rest (AES-256); 24-hour breach notification from processor to controller; documented playbook; 72-hour Art. 33 notification. |
| AI misclassification | AI features advisory only; case handler reads full report before any decision; AI suggestions disable-able per channel; documented in technical-features register. |
6. Consultation (Art. 35(2), 35(9))
The DPO has been consulted and signed off this DPIA. The works council (Betriebsrat / CSE / ondernemingsraad / representantes legales) has been consulted under the applicable codetermination rules. No prior consultation with the supervisory authority is triggered because the residual risks are managed; Article 36(1) thresholds are not met.
7. Codes of conduct and certifications (Art. 35(8))
The processor's published Trust statement sets out the technical and organisational measures. The supplier DPA incorporates EU SCCs Module Two. ISO 27001 (or equivalent) certification supports the controller's evidencing of due diligence in supplier selection.
8. Review schedule (Art. 35(11))
This DPIA is reviewed at the earlier of:
- Any material change in processing (new sub-processor, new data category, new AI feature, new country in scope).
- Every 12 months as part of the privacy programme review.
- Following any significant incident affecting case data.
Conclusion and residual risk acceptance
After mitigations, three residual risks remain and are accepted in writing by the controller:
- Re-identification through reporter-supplied context cannot be eliminated.
- Compelled disclosure by court or regulator cannot be refused where the order is valid.
- Insider abuse risk after controls is low but non-zero.
The DPIA is signed and dated by the controller, the DPO, and the works-council representative. A copy is filed; an extract redacted of case-specific detail is made available on regulatory request.
Controller signature: [Name, Title, Date] · DPO signature: [Name, Date] · Works council signature: [Name, Date]