NordVPN Proton VPN is a privacy-focused virtual private network service developed by Proton AG, the Swiss company behind Proton Mail. Built by scientists who met at CERN, Proton VPN combines Swiss privacy protection with cutting-edge security technology to provide one of the most trustworthy VPN services available—including a genuinely unlimited free tier that doesn’t compromise on privacy.
What distinguishes Proton VPN is its Secure Core architecture, which routes traffic through multiple servers in privacy-friendly countries (Switzerland, Sweden, Iceland) before exiting to the destination. This multi-hop approach means that even if an exit server were compromised, your real IP address and identity would remain protected. All Secure Core servers are owned by Proton and housed in high-security facilities.
Proton VPN is headquartered in Geneva, Switzerland, placing it under Swiss privacy law and outside the jurisdiction of US and EU surveillance programs. Switzerland is not part of the Five Eyes, Nine Eyes, or Fourteen Eyes intelligence-sharing alliances. The company maintains a strict no-logs policy that has been independently audited and verified, and publishes regular transparency reports.
The service supports WireGuard, OpenVPN, and IKEv2 protocols, with features including NetShield ad and malware blocking, Stealth protocol to bypass VPN blocks, kill switch protection, and split tunneling. All apps are fully open source, allowing security researchers to verify that the VPN does exactly what it claims. With over 17,600 servers in 127 countries, Proton VPN offers extensive coverage for both privacy and streaming needs.
Key Features
- Secure Core: Multi-hop routing through privacy-friendly countries
- Free Unlimited Plan: Genuinely free tier with no data caps or time limits
- NetShield: Built-in ad, tracker, and malware blocking
- Stealth Protocol: Bypass VPN blocks and censorship
- WireGuard Support: Modern, fast, and secure protocol
- 17,600+ Servers: Extensive network across 127 countries
- Open Source Apps: All client code publicly auditable
Privacy Highlights
Proton VPN operates under Swiss jurisdiction and maintains a strict no-logs policy: no browsing history, no connection timestamps, no IP addresses, no session durations. This policy has been independently audited by external security firms and verified through regular transparency reports. Even under legal pressure, Proton cannot provide user activity data because they don’t collect it.
All apps are fully open source under the GPL-3.0 license, allowing anyone to inspect the code and verify the privacy claims. Proton owns and operates all Secure Core servers, and a majority of their VPN infrastructure, ensuring physical security of the most sensitive network components.
Privacy Breakdown
Data Residency (Score: 100)
Pros:
- Swiss headquarters outside surveillance alliances
- Secure Core servers in Switzerland, Sweden, and Iceland
- Subject to Swiss FADP privacy protections
- Physical ownership of critical infrastructure
Cons:
- VPN traffic exits through servers worldwide (necessary for VPN functionality)
Confidence: High — infrastructure documentation verified.
Open Source (Score: 92)
Pros:
- All client applications fully open source on GitHub
- Regular independent security audits
- WireGuard implementation publicly auditable
- Community contributions accepted
Cons:
- Server-side software not open source
Confidence: High — code available at github.com/ProtonVPN.
Privacy Policy (Score: 92)
Pros:
- Independently audited no-logs policy
- No connection timestamps or session data
- No browsing history or DNS queries logged
- Regular transparency reports published
Cons:
- Account email stored (can use anonymous Proton Mail account)
Confidence: High — audits by Securitum, policy reviewed January 2026.
Trackers (Score: 95)
Pros:
- No third-party analytics on apps
- No advertising trackers
- NetShield blocks trackers on user’s traffic
Cons:
- Basic telemetry for crash reporting (can be disabled)
Confidence: High — verified through app analysis.
Terms of Service (Score: 70)
Pros:
- Clear acceptable use policy
- No data sharing with advertisers
- Commitment to privacy over compliance where legal
Cons:
- Standard limitations of liability
- Abuse complaints may result in account action
- TOS slightly better than general Proton terms due to VPN focus
Confidence: Medium — ToS reviewed January 2026.
