CIA / Parkerian Hexad

Question 1

Confidentiality

Answer 1

Our ability to protect our data from those who are not authorized to view it.

Question 2

Integrity

Answer 2

The ability to prevent people from changing your data in an unauthorized or undesirable manner. Ex. Altered medical data leads to incorrect treatment.

Question 3

Availability

Answer 3

The ability to access our data when we need it. Ex. Power loss, OS problems, Network attacks.

Question 4

Possession or Control

Answer 4

The physical disposition of the media on which the data is stored. Ex. Stolen Encrypted tapes cause a possession problem; stolen Unencrypted tapes cause a possession and confidentiality problem.

Question 5

Authenticity

Answer 5

Allows you to say whether you’ve attributed the data in question to the proper owner or creator. Ex. Sending an email that appears to be from a different email address than the one it is actually from violates Authenticity.

Question 6

Utility

Answer 6

Refers to how useful the data is to you.
Not necessarily binary in nature; you can have a variety of degrees of utility, depending on the data and its format.
Ex. Encrypted tapes would not be of much utility to attackers but unencrypted tapes would be of much greater utility.