The IT Law Wiki


Repudiation is

[t]he ability of a user to deny having performed an action that other parties cannot prove otherwise. For example, a user who deleted a file can successfully deny doing so if no mechanism (such as audit files) can contradict that claim.[1]
[d]enial by one of the entities involved in a communication of having participated in all or part of the communication.[2]


  1. Justice Information Privacy Guideline - Developing, Drafting and Assessing Privacy Policy for Justice Information Systems, Glossary (Sept. 2002).
  2. ITU, "Compendium of Approved ITU-T Security Definitizons," at 42-43 (Feb. 2003 ed.) (full-text).