https://www.theguardian.com/technology/2023/dec/20/ai-image-generators-child-sexual-abuse

Images might have helped AI systems produce realistic sexual imagery of fake children; the database was taken down in response

Hidden inside the foundation of popular artificial intelligence (AI) image generators are thousands of images of child sexual abuse, according to new research published on Wednesday. The operators of some of the largest and most-used sets of images utilized to train AI shut off access to them in response to the study.