The verdict in three sentences
A lawyer's duty of confidentiality is incompatible with consumer cloud storage whose servers and access sit outside the firm's control. A custom document vault — EUR 18,000-50,000 in 2026 — offers end-to-end encryption, EU hosting and traceability of every access. Secure client sharing finally replaces email, the main leak point in firms.
Custom vault vs consumer cloud
The apparent free ride of consumer cloud is paid in legal risk. 2026 comparison:
| Criterion | Consumer cloud | Custom vault |
|---|---|---|
| Cost | EUR 0-15/user/mo | EUR 18,000-50,000 |
| Encryption | In transit/at rest | End-to-end, firm keys |
| Hosting | Often outside EU | EU guaranteed |
| Access traceability | Limited | Full timestamped log |
| Client sharing | Risky public link | Named secure space |
| Privilege compliance | Not guaranteed | Built in by design |
Consumer cloud suits non-sensitive documents, but a client file is privileged: the question isn't convenience, it's liability.
The building blocks of a compliant vault
A vault isn't mere storage: it's a security and evidence device. Expected 2026 features:
| Block | Function | Requirement covered |
|---|---|---|
| End-to-end encryption | Data unreadable outside firm | Privilege |
| Role-based access | Who sees what | GDPR minimization |
| Audit log | Timestamp of each action | Traceability, evidence |
| Secure client sharing | Named space, expiry | Confidentiality |
| EU hosting | Compliant servers | GDPR, sovereignty |
| Purge & retention | Configurable durations | Right to erasure |
GDPR mandates minimization and traceability: a well-designed vault turns these obligations into native features rather than imposed constraints.
Mini case study
Mr. Bauer, partner at a 12-lawyer business firm, exchanged sensitive documents by email and via consumer cloud. After an incident (a confidential document sent to the wrong recipient), he assessed his exposure: a GDPR sanction for a firm this size can reach several tens of thousands of euros, before disciplinary and reputational risk. A custom vault at EUR 38,000, amortized over 4 years (EUR 9,500/year), removes email as a document channel and provides an enforceable log. The annual cost equals less than one billable hour per lawyer per month.
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FAQ
Is consumer cloud compliant with privilege?
Rarely: servers are often outside the EU and admin access sits outside the firm. For confidential documents, an encrypted vault with EU hosting is the only defensible option.
What does end-to-end encryption bring?
Data is unreadable to anyone without the firm's keys, including the host. That's the protection level expected for privileged documents.
How to share a document with a client securely?
Via a named protected space with expiry and access log, rather than a public link or attachment. Every download is traced and enforceable.
Does the vault help with GDPR compliance?
Yes, role-based access, configurable retention periods and the audit log cover minimization, traceability and the right to erasure.
What timeline and budget to plan?
Expect 3-5 months and EUR 18,000-50,000 by scope (encryption, client portal, integrations), plus annual maintenance. EU hosting is built into the architecture.
Let's scope your project. Specify your document volume, client-sharing needs and retention constraints and we price an encrypted, EU-hosted vault. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
