You are responsible for network and information security at a large hospital. It is a significant
concern that any change to any patient record can be easily traced back to the person who made
that change. What is this called?

A.
Availability

B.
Confidentiality

C.
Non repudiation

D.
Data Protection

Explanation:
Non repudiation refers to mechanisms that prevent a party from falsely denying
involvement in some data transaction.