Encrypted messaging for teams

End-to-end encrypted team chat, built for confidential work.

Direct messages, private channels, encrypted attachments and calls โ€” all under keys that only your members hold.

โ€œConfidentiality that survives a subpoena, a breach and a bad hire.โ€

For companies whose conversations contain client data, unreleased products, deal terms or personal data.

Built for confidentiality

E2EE by default

There is no unencrypted mode, no 'lite' channel type and no provider-side plaintext copy.

Per-member key envelopes

Room keys are sealed individually for each member's X25519 public key, so membership changes are cryptographic, not cosmetic.

Blind-index search

Search works over HMAC tags computed on your device, so we can match without ever seeing your words.

Notifications without leaks

Push notifications carry routing information, not message content.

Audit trail for security events

Sessions, devices and security events are logged immutably โ€” content never is.

Web, desktop and PWA

Same architecture on every surface, in 11 languages, with offline-safe session handling.

Encryption is only as good as key custody

Every serious chat product claims encryption. The question worth asking a vendor is simple: who can obtain a key that decrypts the content? With DRIVUNO the answer is the members of the conversation and nobody else โ€” keys are derived from a passphrase with Argon2id on the device, and the server only ever stores wrapped copies.

Designed against realistic attacks

Server compromise exposes ciphertext. A stolen laptop is protected by device-level lock, PIN lockout and quick-unlock wipe. A departing employee loses access on removal because keys rotate. A malicious insider at DRIVUNO has nothing to read.

Compliance-friendly by data minimisation

Because content is unreadable to us, the personal data we process is limited to account and operational metadata โ€” which shortens DPAs, simplifies GDPR answers and reduces breach exposure. Our DPA, subprocessor list and retention rules are published.

Frequently asked questions

Can DRIVUNO read our messages or files?

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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?

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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?

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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?

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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?

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Yes. The free plan includes 1 GB with the exact same zero-knowledge architecture โ€” 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 โ€” no admin override, no AI scanning, no plaintext on the server.

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