Besides the state-of-the-art encryption (at origin, in-transit & at rest), every document in eSignQuick processing has several tamper-proofing mechanisms. Unique Hashes for the document, Unique hashes for each of eSIgners, each session, and even Audit-Trail of the document life-cycle as well. No one but ONLY the people creating, initiating the documents or invited to review or eSign the doc only can access the Document or its data (ofcourse not even eSignQuick employees). Besides, you can choose various user-verification techniques like 2-factor authentication over email or SMS or even face recognition against an ID like passport or drivers license.