The newspaper that had the first article have updated the story and doubled down:
“The article originally said that the case "really happened like that."
This information came from the company Fortinet, which had described the case as real in the interview and proofread the article before publication. Fortinet is now correcting this statement and calling it a "hypothetical scenario". https://www.luzernerzeitung.ch/wirtschaft/kriminalitaet-die-zahnbuersten-greifen-an-das-sind-die-aktuellen-cybergefahren-und-so-koennen-sie-sich-schuetzen-ld.2569480