- The definition of authenticity refers to the proven fact that something is legitimate or real.
If no one questions the fact that the desk was made in the 14th century because experts determined it was, that is an example of its authenticity.
authenticity definition by Webster's New World
authenticity definition by American Heritage Dictionary
authenticity - Computer Definition
A close relative of authentication, authenticity is the process of ensuring that a message received is the same message that was sent and has not been tampered with or altered. Lawyers, as a real-world case in point, are fanatical about ensuring that evidence is authentic and has not been tampered with or altered in any way to ensure a fair hearing for the accused. This is called chain of custody and is a critical concept in reference to cybercrime.
See Also: Authentication.
The correct attribution of origin such as the authorship of an e-mail message or the correct description of information such as a data field that is properly named. Authenticity is one of the six fundamental components of information security (see Parkerian Hexad).