How does Tresorit Send differ from other file-sharing solutions?
Tresorit Send uses client-side, end-to-end encryption to ensure your files are encrypted before leaving your device and can only be decrypted by the intended recipient. It also includes key security features such as password protection, link revocation, and email notification – all designed to give you control over your shared data.
How is my data stored, and for how long?
Tresorit servers are located in highly secure Microsoft Azure data centers in Ireland. Your stored content and all related metadata, such as your settings and email address, will be removed from our system 14 days after your link expires.
Is the encryption audited by third parties?
A third-party audit and open-source release of Tresorit Send are on our roadmap. We will publish updates as soon as they become available.
What technology secures my files?
Tresorit Send uses AES-256 encryption with symmetric keys to secure uploaded files. The unique download link contains the decryption key, which is never stored on Tresorit's servers. This ensures that only you and the recipient can access the files.
ℹ️ Share the password and link through different channels (e.g. link via email, password via SMS) for maximum security.
What if I accidentally send the password and link to the wrong person?
If you believe both the link and password were shared with the wrong recipient, revoke the link immediately to block access. Then, create a new link with a new password.
Why do you ask for my email address?
Your verified email address is displayed on the download page, reassuring recipients that the files come from a trusted source. It also ensures you receive the unique admin link, which allows you to manage or revoke shared files.
Why isn't the download link included in the admin email?
For security reasons, Tresorit does not store the encryption key contained in your sharing link. This ensures that only you can access and distribute the link. Be sure to copy and save it after creation – if you miss this, you'll need to create a new link.
How do I verify my email address?
By default, your email appears as not verified on the download page. To verify it, open the admin link from the confirmation email.
ℹ️ Verification applies only to the specific link you created. Each new link requires a new verification.
Why is Tresorit Send free?
Tresorit Send is a freemium product, designed to make secure sharing accessible to everyone. We don't plan to turn it into a paid service. For advanced features and cloud storage, check out our plans.
How does Tresorit Send fit within the broader Tresorit ecosystem?
External file sharing is one of the most common use cases among Tresorit users. Tresorit Send was created to simplify onboarding and extend secure sharing to anyone - even without a Tresorit account.
I can't download files on iOS. What should I do?
File saving via mobile browsers is supported from iOS 13 onward. On older versions, you can still preview specific files (.pdf, .docx, .jpg, .png), but you won't be able to save them directly.