Senior management is reviewing the results of a recent security incident with significant business impact. Which of the following findings should be of GREATEST concern?

While significant gaps in incident documentation are problematic for post-incident analysis and improvement, they are less critical than a breakdown in decision-making authority during the active response.

An incident not being logged in the ticketing system indicates a procedural failure, which is a concern for tracking and process adherence, but less severe than incorrect or unauthorized response decisions themselves.

Unauthorized decision-making during a significant incident implies a failure of established incident response processes, roles, and governance, which can exacerbate impact, incur legal/regulatory issues, and undermine trust.

Outsourcing response due to insufficient resources is an operational challenge that can be addressed through planning; it is not as fundamentally concerning as a failure in governance and authorized decision-making during the response.