Hello! Ao3 has been part of an unauthorized data scrape for GenAI purposes. If your fic has an ID number between 1 and 63200000, it may be a part of the data set and you can file a DMCA copyright infringement notice on the American sites it was uploaded to. Each of you will need to request a takedown.
Here’s a link to the information.
It is a reddit link, but it has the other links you’ll need in one place.
(Tagging with as many medias as I can remember so it gets to more fandoms)