PRESERVING INTEGRITY OF MULTI-AUTHORED MESSAGE CONTENT

The present methods are directed to authenticating multi-author message content. In aspects, a sender of a message (first author) may utilize a messaging application to create the message and some message content. However, when creating the message, the sender may embed original content (e.g., from a second author) into the message. For instance, the sender may embed original content corresponding to a news article, a Twitter® post, an invoice, a blog post, or any other original content. Traditional systems are able to verify the sender (first author), but cannot verify the authenticity of the embedded original content. That is, when the recipient receives the message, the recipient cannot verify whether or not the sender (or some other individual) altered the original content prior to sending the message. The present systems provide for recipient authentication of the identity of the second author, as well as the authenticity of embedded original content.