The three million toothbrush botnet story isn’t true.
Here’s the original source of the story: https://archive.is/2024.01.30-203406/https://www.luzernerzeitung.ch/wirtschaft/kriminalitaet-die-zahnbuersten-greifen-an-das-sind-die-aktuellen-cybergefahren-und-so-koennen-sie-sich-schuetzen-ld.2569480
It’s simply a made up example. It doesn’t exist. It starts talking about NoName Ddosia, too, which also isn’t toothbrushes.
It was a psi-op to distract you from the horrible reality of the Furby Bot-net that will be the end of life as we know it