Sharing sensitive documents securely: here’s how Certiblok succeeds in doing it

Sharing sensitive documents has never been so secure.
If you work with confidential information – contracts, tax data, reports, legal documents – you know well how important it is to keep control over what you share. With Certiblok, you can do it with the certainty that every file is protected by end-to-end encryption and a system of personalized access that lets you decide who can see what, when, and for how long.

What is end-to-end encryption and why is it essential?
End-to-end encryption (E2EE) protects your documents from prying eyes. This means that only the sender and the recipient can access the content, and no one else – not even Certiblok – can read or modify what has been shared.

Documents uploaded to Certiblok are automatically split into 80 parts, encrypted with AES-256 standards, and distributed across more than 26,000 nodes monitored by the Ethereum blockchain. In practice, even if someone were to intercept your data, they would never be able to reassemble or decrypt it.

How does access control work on Certiblok?
Each document uploaded to the platform is accompanied by a “digital identity card” that includes:

• File owner

• Current version and edit history

• Expiration date and notifications

• Active accesses and sharing modes

You can decide at any moment with whom to share a document and with what level of access: possibility to edit (Edit Room), or time-limited access (Audit Room). You can also make certain files public via QR code, or limit them to selected users with private access.

In which contexts can this be useful to you?
Sharing sensitive documents securely is crucial in many fields:

• Law firms: to exchange contracts, deeds, or case files with clients and courts.

• Medical practices: to transmit reports and diagnoses.

• Companies: to manage NDAs, internal documentation, and relationships with suppliers.

• Professionals: to send confidential files without the risk of breaches.

With Certiblok, you can store, update, and share everything without ever exporting the data to external servers, maintaining full ownership and control.

Which integrated tools enhance security?
In addition to E2EE encryption and blockchain, Certiblok offers:

• Two-factor authentication (2FA): activatable for each user in your team.

• Advanced folder privacy: visible only to you or to those you authorize.

• Automatic notifications: receive alerts when someone accesses, when a document is about to expire, or when an audit room closes.

• Internal video calls: also with external users, without the need for third-party platforms.

Discover in detail all the security features of Certiblok or read how they are used in real cases described on our official blog.

Whether you’re sharing a confidential contract or a simple work document, with Certiblok you can do it with the peace of mind of knowing that no data will fall into the wrong hands.
Now that you know how it works, you’re ready to take the next step.