RMail Verified Customer Reviews (2026)

Tresorit is a zero‑knowledge, end‑to‑end encrypted cloud collaboration platform built for organizations and individuals who need maximum control over sensitive data. It enables secure file storage, synchronization, and sharing while ensuring that only the data owner and explicitly authorized users can access content. Files are encrypted on the user’s device before upload, and encryption keys are never accessible to Tresorit, protecting data from internal access, breaches, and unauthorized disclosure. The platform supports secure internal collaboration through encrypted folders and workspaces with granular permission controls. Teams can define who may view, edit, or manage files, revoke access at any time, and track activity to maintain visibility and accountability. Tresorit also enables secure external sharing via encrypted links and protected email delivery, replacing risky attachments and unsecured file transfers with controlled, auditable exchanges. For client‑ and partner‑facing collaboration, Tresorit provides encrypted data rooms that centralize documents, tasks, and approvals in a single secure environment. These data rooms are designed for ongoing collaboration rather than one‑off transactions, allowing organizations to manage long‑term external projects while maintaining strict confidentiality. Integrated digital signatures make it possible to review and sign documents without leaving the encrypted workspace, preserving security throughout the entire document lifecycle. With advanced administrative controls, audit logs, and configurable data residency options, Tresorit is built to support compliance with strict data protection and regulatory requirements. By combining strong security with intuitive usability, Tresorit enables productive collaboration without compromising privacy, ownership, or trust.