A Critical incident is one that is potentially catastrophic to the organization or disrupts day-to-day operations, with likely violation of legal, regulatory, or contractual requirements, so that it receives the highest severity classification.

Critical: the incident is potentially catastrophic to the organization

— Pyrana Incident Response Policy.pdf

and/or disrupts the organization's day-to-day operations

— Pyrana Incident Response Policy.pdf

a violation of legal, regulatory, or contractual requirements is likely

— Pyrana Incident Response Policy.pdf