# 34 Meaning of significant cyber security incident

A cyber security incident is a ***significant cyber security incident*** if:

- (a) there is a material risk that the incident has seriously prejudiced, is seriously prejudicing, or could reasonably be expected to prejudice:
  - (i) the social or economic stability of Australia or its people; or
  - (ii) the defence of Australia; or
  - (iii) national security; or
- (b) the incident is, or could reasonably be expected to be, of serious concern to the Australian people.