Thanks for looking in-depth in our post. The Hitachi RTU500 mention is not an hallucination, we did check for those. It is mentioned in the Mandiant threat intelligence data.
As far as I can tell, the only connection between those is, that CISA released this alert which mentions multiple unrelated advisories in one post. Which happens to be the Siemens Palo Alto and another unrelated Hitachi advisory in RTU500: https://www.cisa.gov/news-events/alerts/2024/04/25/cisa-rele...
Imagine if a relatively clueless intern left something out of a report because the textbook "seemed wrong".
Saying that the input data is wrong and the AI didn't hallucinate that data is also kind of a "trust me bro" statement. The Mandiant feed is not public, so I cannot check what was fed to it.
I don't really care why its wrong. It is wrong. And using that as the example prompt in your announcement is an interesting choice.