Joe sends a scathing e-mail to his boss regarding increased work hours. joe tries to deny sending the e-mail, but is unable to due to the use of digital signatures. this is an example of
a. confidentiality
b. integrity
c. availability
d. authentication
e. nonrepudiation

The answer is E, which is Nonrepudiation

Explanation:

Nonrepudiation is the confidence attached to the fact that someone cannot deny something. It directs to the ability to ensure that a party to a contract or a communication cannot deny the authenticity of their signature on a document or the sending of a message that they originated.

true never assume something it makes an a** out of u and me.

answer; certification; plz check first, i believe this is correct. good luck;