While Box Sign allows you to secure a document when sending it for signature (SMS, Password), the document is viewable without the SMS or Password once it is signed. Box Sign automatically sends an email to all parties confirming the completion of the signing process. In that email the link to the completed document is not protected by the same measures as when it was first sent for signature.

In many cases, the document that is being signed contains extremely sensitive information and thus it is best practice for the document to be protected with the additional layer of authentication even after it is signed.

Currently, the only way to manage this is for the Box Sign owner to locate the completed files and either remove the Shared Link that Box Sign automatically created or to manually enable a password for the link.