What method does DocuSign use to ensure that a document is signed only by authorized personnel?

DocuSign employs various authentication methods to verify the identity of signers before they can access and sign a document. This process ensures that only authorized personnel can execute the signing action, thereby protecting the integrity of the document and the transaction. Different authentication options may include email verification, access codes, SMS authentication, and more, allowing companies to choose the level of security that meets their specific needs.

The other options do not provide effective or practical solutions for ensuring authorized signing. Hand-written signatures can be forged, traditional mail does not allow for immediate verification or security measures, and requiring witnesses for each signature can be cumbersome and impractical in many situations. Thus, utilizing robust authentication methods remains the most reliable approach to guarantee that only designated individuals can sign documents within the DocuSign platform.