Adelaide man who made sexual deepfakes of a teenage girl from her graduation photo gets suspended jail term in Australia's first federal deepfake prosecution
William Hamish Yeates, then 18, of Netherby in Adelaide, created sexually explicit deepfake images and videos of a teenage girl with whom, his counsel said, he had developed an obsession, using her school graduation photograph, and shared them across multiple accounts on X between October 2024 and February 2025. Appearing in court in February 2026 charged with eight counts of creating or altering sexual material without consent and 12 counts of using a carriage service in a harassing or offensive way, he became the first person in Australia prosecuted under the Commonwealth offence introduced in 2024 against adult deepfake pornography; in April 2026 he pleaded guilty to two counts of creating or altering sexual material without consent (October 2024 to February 2025) and two of the carriage-service offence, and the remaining counts were withdrawn. At a pre-sentence hearing in the South Australian District Court on 22 September 2026 the victim, now 19, told the court that the first time she saw her actual graduation picture was on a pornography website beside altered videos of her with her full name and school attached, that she feels sick whenever she sees the photo, that the discovery led to the darkest period of her life, and that although the images were fake their impact was painfully real. Yeates read an apology; his counsel cited diagnoses of autism spectrum disorder and compulsive sexual behaviour disorder and asked for no custody; the Commonwealth prosecutor sought imprisonment. On 27 October 2026, according to AAP, Judge Anne Barnett sentenced him in the South Australian District Court to two years and three months' prison, suspended on condition that he enter a three-year, $500 good behaviour bond, and ordered him to pay the victim's medical expenses and forfeit a phone and laptop seized by police; the judge said the availability of AI tools had increased the capacity for offending and to cause substantial harm, and that the victim remains frightened the content will resurface.
AI involvement supported · Causal attribution established · 5 sources, 2 underlying accounts · Added 23/09/2026