Proton
Datenschutz von Anfang an. Verschlüsselte E-Mail, VPN, Cloud-Speicher, Kalender und Passwort-Manager aus der Schweiz.
Profil zuletzt aktualisiert:
Über Proton
Proton ist ein Schweizer Datenschutz-Unternehmen, das Ende-zu-Ende-verschlüsselte Produktivitätswerkzeuge entwickelt, die von über 100 Millionen Menschen, Journalisten, Aktivisten und Unternehmen weltweit genutzt werden. Die Suite umfasst Mail, VPN, Drive, Calendar, Pass und Wallet -- so gebaut, dass Proton selbst keine Nutzerdaten lesen kann.
2014 am CERN gegründet, untersteht Proton vollständig der Schweizer Gerichtsbarkeit und gehört der gemeinnützigen Proton Foundation. Alle Clients sind Open Source und unabhängig auditiert.
Integrationen
Demo-Video
Funktionen
- End-to-end encryption across Mail, Drive, Pass, Calendar, VPN
- Zero-access architecture, so Proton cannot read user content
- Swiss jurisdiction and ownership by the Proton Foundation
- Open-source clients with independent third-party audits
- PGP-compatible Mail with anonymous Send
- Proton Sentinel program for high-risk users
- Native apps on Web, iOS, Android, macOS, Windows, Linux
- Custom domain support with DKIM, SPF and DMARC
- SAML SSO and SCIM provisioning on Business plans
- Bridge for IMAP/SMTP integration with native clients
- Anti-phishing link confirmation
- Hide-My-Email aliases via SimpleLogin
Souveränitäts-Scorecard
Beschaffungsrelevante Signale zu Datensouveränität, Eigentum und EU-Datenresidenz.
Stiftungseigentum
Owned by the Proton Foundation (Stiftung Proton), a Swiss non-profit foundation, since June 2024. The foundation's purpose is to safeguard internet freedom and ensure Proton remains independent.
🇨🇭 Switzerland
- Proton Mail Inc. — 🇺🇸 United StatesUS sales and customer support presence; does not hold or process user content.
- SimpleLogin SAS — 🇫🇷 FranceOperator of the SimpleLogin email alias service acquired by Proton in 2022.
Feste Region
All user content is stored on Proton-owned hardware in Swiss data centres. Region is not customer-configurable; Switzerland is the only jurisdiction.
Webseite: Proton-owned servers (Switzerland) behind a Swiss CDN
Anwendung: Proton-owned data centres in Plan-les-Ouates and Lausanne
E-Mail: Proton-owned mail clusters (Switzerland)
CDN: Self-hosted (no Cloudflare or Akamai for user-facing apps)
| Name | Land | Zweck |
|---|---|---|
| Stripe Payments Europe Ltd. | 🇮🇪 Ireland | Card payment processing |
| Twilio Ireland Ltd. | 🇮🇪 Ireland | SMS-based two-factor authentication |
| Zendesk International Ltd. | 🇮🇪 Ireland | Customer support ticketing |
Information Security Management System covering all Proton services
Swiss Federal Act on Data Protection (revised 2023)
Trust Services Criteria, anticipated late 2026
Preise
€0
- 1 GB Mail + Drive storage
- End-to-end encryption
- 1 free VPN connection
- Encrypted Calendar and Password Manager
€3.99
- 15 GB total storage
- Custom domain support (1 domain)
- 10 email addresses
- Unlimited folders, labels, filters
€9.99
- 500 GB storage across all services
- Proton VPN with Secure Core
- Proton Pass with unlimited shared vaults
- Up to 3 custom domains
- Sentinel high-security program
€12.99
- 1 TB per user
- DPA + SCCs available
- Admin console + SSO + SAML
- Priority support
Videos
Offizielle Downloads
Fragen & Antworten
6 Fragen
Where is Proton headquartered and where is data stored?
Proton AG is headquartered in Plan-les-Ouates, Geneva, Switzerland. All user data is stored in Swiss data centres operated by Proton, including the company-owned hardware in Lausanne and Plan-les-Ouates. Switzerland is outside the European Union but offers stronger privacy protections than EU/EEA jurisdictions in many areas.
Is Proton subject to the US CLOUD Act?
No. Proton AG is a Swiss-domiciled legal entity with no US subsidiary or US-headquartered parent. Proton is owned by the Proton Foundation, a Swiss non-profit. The CLOUD Act applies to US-headquartered providers and their foreign subsidiaries, neither of which describe Proton.
Can I use Proton with my own custom domain?
Yes. Mail Plus supports one custom domain and Proton Unlimited supports up to three. Business plans support unlimited domains. Setup is via DNS records (MX, SPF, DKIM, DMARC) and is documented in the admin panel.
Does Proton offer a Data Processing Agreement?
Yes. Proton offers a GDPR-compliant Data Processing Agreement and Standard Contractual Clauses for business customers. Documents are available on request from [email protected] or directly through the Business admin panel.
Are Proton apps open source?
Yes. All Proton client applications (Mail, VPN, Drive, Calendar, Pass) are open source under permissive licences and the source code is published on GitHub. The cryptographic libraries have been independently audited by Cure53, Securitum and other reviewers, and the audit reports are publicly available.
What happens if Proton receives a Swiss subpoena?
Proton can only provide data it actually has, and because of zero-access encryption that is limited to subscriber metadata such as IP at registration (if not paid in cash). Proton publishes a transparency report twice a year documenting the orders received and how they were handled.
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