Which of the following are ensured by the concept of integrity in information system security?
Each correct answer represents a complete solution. Choose two.
A . Unauthorized modifications are not made by authorized users.
B . Data modifications are not made by an unauthorized user or process.
C . The intentional or unintentional unauthorized disclosure of a message or important document contents is prevented.
D . The systems are up and running when they are needed.
Answer: A,B