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Client work6 min read

Secure client file sharing for consultants

How independent consultants can exchange strategy documents, financials and board material with clients without leaving readable copies on a vendor's servers.

Try it in one click.

Three private surfaces. Same zero-knowledge architecture.

Consulting material is more sensitive than it looks Strategy decks, financial models, restructuring plans, board packs and due-diligence files describe decisions before they are public. A leak is not embarrassing; it is material.

Yet the standard workflow is an email attachment or a shared cloud folder — both of which leave readable, permanent copies with at least one provider and often several.

The three exposure points **The mailbox.** Attachments persist in sent items, in the recipient's client, in backups and on servers, readable by whoever administers them, and unrecallable.

The shared folder. Access lists drift. People who joined a project two years ago are still in it. The provider can read everything regardless.

The forwarded link. Someone shares the review link with a colleague who shares it further. Without expiry and per-recipient links, you never learn where it went.

A workflow that fixes all three - One encrypted space per client engagement, with each participant holding their own sealed key. - Protected links for people outside the engagement: passphrase on a separate channel, expiry within 24 hours at most, optional view cap, instant revocation. - Watermarked, view-only distribution for board material that should be read rather than kept. - An append-only access record you can export if handling is ever questioned. - Deliberate close-out: revoke links, remove participants so keys rotate, archive, export the log.

Collecting material from the client Inbound is half the job. Clients send financials, contracts and personnel data, usually as attachments. A protected upload link lets them encrypt in their own browser and deliver straight into the engagement space, so no readable copy sits in your mailbox for the next decade.

Why clients increasingly ask Procurement and legal teams now ask small suppliers where data is stored and who can read it. "My cloud provider cannot decrypt it, each client is cryptographically separated, and I can produce an access trail" is a better answer than most consultancies can give — and it is checkable.

Getting started without disruption Start with the single most sensitive engagement. Move intake and delivery for that client only, keep everything else as it is for a month, then extend once the habit is established. Changing everything at once is how security projects die.

Try it in one click.

Three private surfaces. Same zero-knowledge architecture.

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