Campo Grande, Mato Grosso do Sul: a workshop owner paid about R$28,000 by Pix for a car after messages and voice notes in his brother's AI-cloned voice 'confirmed' the vehicle; a second family avoided the same fraud by checking directly with their daughter
A businessman who owns a workshop in Campo Grande, Mato Grosso do Sul, found a car advertised at a market price by a seller who said he was in Ponta Porã, the businessman's home town; he passed his brother's contact so the brother could inspect the car. The fraudsters then contacted him as if they were his brother, saying he had seen the car, sending a video and confirming everything was in order; believing he was speaking to his brother, he made a Pix transfer of about R$28,000, after which the contact was blocked. He told G1 MS and TV Morena that the criminals used information about his family and a cloned voice. Guided by his wife, he contested the transfer through the Central Bank's special return mechanism and, after nearly three hours, a police report and an in-person registration, recovered about 20 percent. In a second case reported alongside, a medical student's mother in Dourados received messages, a voice note and a video from someone posing as her daughter, in a cloned voice, approving payment for an HB20 she was buying in Campo Grande; the mother checked directly with her daughter and discovered the audio had been AI-generated before any money was sent. A state prosecutor said his unit had not yet catalogued identical voice-cloning cases and urged victims to file police reports; the Civil Police did not respond to G1's questions. The date of the fraud is not reported.
AI involvement reported · Causal attribution alleged · 1 source · Added 21/09/2026