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Tresorit is a zero‑knowledge, end‑to‑end encrypted cloud collaboration platform built for organizations that handle sensitive data. It enables secure file storage, syncing, and sharing while ensuring that only data owners and authorized recipients can access content—Tresorit itself cannot. Files are encrypted on the user’s device before upload and remain protected throughout storage and sharing. The platform supports secure internal collaboration and external data exchange through encrypted file sharing, secure email links, digital signatures, and encrypted data rooms for client and partner collaboration. Tresorit provides granular access controls, auditability, and configurable data residency to help meet strict security and compliance requirements. Designed as a privacy‑first alternative to traditional cloud tools, Tresorit allows teams to collaborate productively without compromising control, confidentiality, or regulatory obligations.

End-to-end encryption and user identity authentication let you transfer files securely. Optional protections help you prevent unauthorized tampering with the content. A two-step process using sharable transfer links and one-time passwords sent via email or SMS makes sure only the right people receive your files. Protect uploaded content with links that expire, download limits, and watermarks. C2 Transfer works for anyone who shares a great number of files. Up to 100 transfers can be active at the same time and each transfer can contain 20 GB worth of files. Request and receive files from anyone by sending them a simple and secure link. All files are encrypted and recipients are asked to verify their identity before uploading files. Businesses can quickly manage C2 Transfer licenses through a simple interface, simplifying user access. Secure file sharing doesn't need to be complicated. Simple steps ensure each file you send with C2 Transfer is delivered to the right person.