Email attachments are the weakest link you still use
Attachments sit unencrypted in several mailboxes, are backed up by several providers, and are impossible to revoke. A portal fixes distribution; an encrypted portal also fixes custody.
Client portals
One encrypted space per client, instead of ten email threads.
Documents, deliverables and conversation in one sealed room — with access you can grant, prove and revoke.
“Professional on the surface. Uncompromising underneath.”
For law firms, accountants, consultancies, agencies and healthcare-adjacent practices exchanging sensitive documents with clients.
Built for confidentiality
A room and a drive per client
Each client gets an encrypted room with its own Team Drive, sealed per participant.
Invite by email in one step
Invitations are accepted immediately; the client's keys are generated on their first login.
Documents stay encrypted
Uploads are encrypted client-side, previewed in-browser, and never readable by us.
Exportable audit trail
Every grant, revocation and access is recorded immutably — useful for your own compliance file.
Time-boxed external access
Send an expiring encrypted link when a third party needs a single document rather than the portal.
11 languages
Your client sees the portal in their language, including Arabic, Japanese, Korean and Chinese.
Onboarding a client in minutes
Create the room, invite the email, drop the files. The client signs in, keys are created on their device, and the folder key is sealed to them. No VPN, no client software, no IT ticket.
When the engagement ends
Revoke access and the key rotates. Archive the room and the history stays encrypted under your keys. Delete it and the ciphertext is purged on the published retention schedule.
Frequently asked questions
Can DRIVUNO read our messages or files?
+
No. Messages and files are encrypted on the device before they are sent. DRIVUNO Rooms seals every message with XChaCha20-Poly1305 under a room key that is itself wrapped per member with X25519. Servers relay and store ciphertext only.
How is this different from Slack or Microsoft Teams?
+
Slack and Teams encrypt data in transit and at rest, but the provider holds the keys, so administrators, automated systems and legal requests can reach message content. DRIVUNO is designed so that this is technically impossible on our side: we never hold a key that opens your content.
What happens when someone leaves the team?
+
Removing a member revokes their sealed copy of the room or folder key and triggers a key rotation, so future content is sealed under a key they never had.
Do you keep metadata?
+
Only what is strictly required to operate: account identifiers, membership, timestamps, sizes and security/audit logs. File and channel names are encrypted; search runs on blind indexes (HMAC tags), not on plaintext.
Is there a free plan to test it?
+
Yes. The free plan includes 1 GB with the exact same zero-knowledge architecture — encrypted drive, Rooms messaging and encrypted sharing.
Related
Your sensitive files deserve more than a traditional cloud.
Start free with 1 GB. Zero-knowledge encryption from the first upload — no admin override, no AI scanning, no plaintext on the server.