Week 4

8.4 Interrelationship of components required for effective security

8.4.1 Understand how the relationships in the CIA triad interrelate:

• confidentiality:

o ensuring that data is kept private by controlling who has access to

the data

• integrity:

o ensuring that the data has not been tampered with; this can be done

by maintaining confidentiality

• availability:

o ensuring that data is available and useful; this can be done by

ensuring integrity.

8.4.2 Understand the elements of the Identification Authentication Authorisation

Accountability (IAAA) model, including the techniques used and their

benefits and drawbacks:

• identification:

o recognising the individual within a digital system

o knowledge-based identification, including username

o possession-based identification methods

o biometric-based ID methods

• authentication:

o verifying the identity claimed during the identification phase

o multi-factor authentication methods

o passwords and pass phrases

o biometric authentication

• authorisation:

o ensuring that authenticated users can only access resources and

perform actions that they are permitted to

o role-based using the role of the user within the digital system

o access control lists

• accountability:

o ensuring that any actions within a system can be traced back to the

responsible user

o audit logs

o user activity monitoring.

Last Updated
2026-02-24 10:55:43