![Gaetano Mauro F.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Gaetano Mauro F.") GF Gaetano Mauro F. President & CEO Small-Business (50 or fewer emp.) 6/24/2026 "Peace of Mind with True Zero-Knowledge Encryption and Seamless Secure Sharing" 5/5 What do you like best about Tresorit? What I like best about Tresorit is its unwavering commitment to zero-knowledge end-to-end encryption as the default state for all data, not an optional feature. This architectural choice ensures that even Tresorit itself has no access to my files, passwords, or metadata, providing a level of privacy that feels essential for protecting high-stakes business strategies and sensitive personal data. The most helpful aspect is how seamlessly this ironclad security integrates into daily workflows. It doesn't sacrifice usability for safety; I can collaborate with teams, share large files with clients via controlled links, and sync across devices without constantly wrestling with complex key management or fearing a breach. The granular control over shared links—allowing me to set expiration dates, disable downloads, or revoke access instantly—is particularly valuable for managing confidentiality in dynamic projects. The ultimate upside is peace of mind through data sovereignty. By anchoring operations in Switzerland's strict privacy laws and eliminating the risk of server-side data exposure, Tresorit offers a sanctuary for critical intellectual property. For a consultant and entrepreneur dealing with confidential insights, the assurance that my data remains entirely mine—even if the service provider is compromised—is an investment in trust that pays dividends in reputation and security. Review collected by and hosted on G2.com. What do you dislike about Tresorit? The most notable downside of Tresorit is its limited integration ecosystem. Unlike more mainstream cloud platforms that plug seamlessly into hundreds of third-party tools, Tresorit's integrations are relatively sparse. For a nonprofit juggling CRMs, project management boards, and communication platforms, the lack of native connectors means more manual workflows and friction in day-to-day operations. You may find yourself downloading files to edit them locally and re-uploading, rather than working fluidly within a connected ecosystem. A related frustration is the absence of real-time collaborative editing. Tresorit excels at securely storing and sharing files, but it doesn't offer built-in co-authoring like some competitors. For a team drafting grant proposals, policy documents, or campaign strategies together, this creates a practical hurdle — secure storage and seamless collaboration remain separate experiences rather than a unified one. Additionally, because Tresorit employs client-side encryption, search functionality is inherently limited. The server cannot index the content of your encrypted files, so finding a specific document by keyword within a growing repository becomes increasingly cumbersome. As your nonprofit accumulates years of records, reports, and correspondence, this limitation can turn a quick retrieval into a tedious hunt. Finally, sync performance can feel slower than non-encrypted alternatives, particularly with large files, since Tresorit lacks block-level sync — meaning a small edit to a large file triggers a full re-upload rather than updating only the changed portion. For bandwidth-conscious organizations, this is worth noting. These aren't dealbreakers — they're the honest trade-offs that come with genuine zero-knowledge architecture. The question is whether the security posture justifies the workflow compromises, and for many mission-driven organizations, it does. But transparency in a review demands acknowledging where the friction lives. Review collected by and hosted on G2.com. What problems is Tresorit solving and how is that benefiting you? Tresorit is solving the critical tension between collaborative agility and strict data sovereignty, a challenge that is particularly acute for nonprofits handling sensitive donor data, volunteer information, and strategic grant applications. The primary problem it addresses is regulatory and reputational risk. In the nonprofit sector, losing trust can be as damaging as financial loss. Tresorit eliminates the risk of third-party data scraping or server-side breaches by ensuring that even if Tresorit's infrastructure were compromised, your data remains unreadable to attackers due to zero-knowledge encryption. This solves the headache of compliance with international privacy standards (like GDPR) without requiring an in-house security team to manage complex key infrastructures. For your organization, the benefit manifests in operational confidence. You can share large, sensitive files with partners, auditors, or board members globally without fear of interception or unauthorized access. The "secure link" feature allows you to control exactly who sees what and for how long, which streamlines the vetting process for sensitive proposals. Essentially, it removes the "security anxiety" from your daily workflow, allowing your team to focus on mission-critical tasks rather than worrying about data leaks. It transforms security from a bottleneck into a seamless layer of trust that accelerates your impact. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic See what 257 reviewers think of Tresorit 4.5 out of 5 · Verified reviews from real users [ Read all reviews ](https://www.g2.com/products/tresorit/reviews)