1. AFAICT, they don't state whether the flaw has been fixed.
2. He said: "The government will establish a task force led by the Department of the Prime Minister and Cabinet to urgently examine the incident and determine whether existing processes are adequate for responding to AI-related cyber incidents."
First, I don't know how sophisticated the attack was, but it's interesting that he's positioning this as an "AI-related cyber incident". For all we know, their security was not up to snuff, and human hackers had already accessed the material.
At least OpenAI informed them of their poor security!