Proton

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办公效率 Proton offers encrypted email, VPN, cloud storage, password management, and other privacy-focused services.

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Proton stands out for building an entire suite of services around end-to-end encryption and Swiss privacy laws, rather than treating privacy as an add-on. The free tier covers core needs like email and VPN with real usage limits, while paid plans unlock more storage and advanced features. It is a st

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Proton is a privacy-focused technology company best known for Proton Mail, an encrypted email service, and it has expanded into a full suite of online tools. The company positions itself around the idea that privacy should be the default rather than an optional setting, and it backs this with a transparent trust center covering certifications such as ISO 27001 and compliance frameworks like GDPR and HIPAA.

The product lineup spans communication, storage, and security: Proton Mail for encrypted email, Proton VPN for private browsing, Proton Drive for cloud storage, Proton Pass for password management, Proton Calendar, Proton Docs and Sheets for collaborative documents, Proton Meet for video conferencing, Proton Authenticator for two-factor codes, and Proton Wallet for Bitcoin. There is also Lumo AI, an assistant designed with privacy in mind, and hide-my-email alias tools.

Proton serves both personal users and businesses. Individuals can start with a free account that includes core services, while paid personal plans add more storage and features. For organizations, Proton offers business versions of Mail, VPN, Drive, Pass, Meet, Calendar, Docs, and Sheets, along with industry-specific guidance for tech, healthcare, nonprofits, and news media, plus migration support for teams switching from Microsoft 365 or Google Workspace.

A practical approach is to begin with the free account to test email and VPN, then upgrade only when storage or advanced features become necessary. Bus