Proton VPN

Swiss privacy-first VPN with open-source apps and NetShield ad blocking

OneTrust

Enterprise privacy, consent, and compliance management platform for regulated organisations

Proton VPN

Excellent

22/25

OneTrust

Strong

21/25

Score Breakdown

DimensionProton VPNOneTrust

Data Residency

Where is your data stored and processed?

Proton VPN: Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

OneTrust: EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

5/5

Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

4/5

EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

Legal Jurisdiction

Which laws govern the company and your data?

Proton VPN: Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

OneTrust: US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

5/5

Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

2/5

US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

Data Retention & Training

Is your data used for model training?

Proton VPN: Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

OneTrust: No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

5/5

Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

5/5

No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Proton VPN: ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

OneTrust: ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

3/5

ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

5/5

ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

Regulatory Fit

Suitability for regulated industries and professional services

Proton VPN: Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

OneTrust: Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

4/5

Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

5/5

Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

Total Score

22/25

21/25

Best For

Proton VPN

Best for organisations requiring broad certification coverage (ISO 27001, ISO 27701, SOC 2 Type II); regulated industries (ICO, CNIL); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

OneTrust

Best for EU-headquartered organisations needing maximum data sovereignty; privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Detailed Comparison

OneTrust vs Proton VPN: Trust & Compliance Comparison

OneTrust (OneTrust, US) scores 21/25 overall with a Silver (Strong) trust badge. Enterprise privacy, consent, and compliance management platform for regulated organisations. Proton VPN (Proton AG, CH) scores 22/25 with a Gold (Excellent) trust badge. Swiss privacy-first VPN with open-source apps and NetShield ad blocking.

Dimension-by-Dimension Breakdown

#### Data Residency

Proton VPN leads with 5/5 vs 4/5.

●OneTrust (4/5): EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

●Proton VPN (5/5): Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

#### Legal Jurisdiction

Proton VPN leads with 5/5 vs 2/5.

●OneTrust (2/5): US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

●Proton VPN (5/5): Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

#### Data Retention & Training

Both score equally at 5/5.

●OneTrust (5/5): No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

●Proton VPN (5/5): Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

#### Certifications

OneTrust leads with 5/5 vs 3/5.

●OneTrust (5/5): ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

●Proton VPN (3/5): ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

#### Regulatory Fit

OneTrust leads with 5/5 vs 4/5.

●OneTrust (5/5): Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

●Proton VPN (4/5): Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

Certifications at a Glance

Certification	OneTrust	Proton VPN
CSA STAR	Yes	No
ISO 27001	Yes	Yes
ISO 27701	Yes	No
SOC 2 Type II	Yes	No

Overall Verdict

OneTrust and Proton VPN are closely matched on trust and compliance, with scores of 21/25 and 22/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, Proton VPN or OneTrust?

Proton VPN has a TrustKit score of 22/25 while OneTrust scores 21/25. Proton VPN currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Proton VPN and OneTrust compare on data residency?

Proton VPN scores 5/5 for data residency (Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.), while OneTrust scores 4/5 (EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers).

Are Proton VPN and OneTrust GDPR compliant?

Both tools are assessed across five compliance dimensions. Proton VPN has a regulatory fit score of 4/5 and OneTrust scores 5/5. Check the full comparison above for a detailed breakdown.

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