
Alas, fiction is sometimes stranger than truth. There weren't really 3 million Internet-connected toothbrushes accessing the website of a Swiss company in a DDoS attack that did millions of dollars of damage. The toothbrush botnet was just a hypothetical example that some journalists wrongly interpreted as having actually happened.
https://arstechnica.com/tech-policy/2024/02/viral-news-story-of-botnet-with-3-million-toothbrushes-was-too-good-to-be-true/