An AI-powered news site called Hoodline falsely accused San Mateo County District Attorney of murder when its AI system misinterpreted a social media post about the DA's office charging someone else with murder.
Hoodline San Jose, an AI-powered local news site owned by Impress3, published an article falsely claiming that San Mateo County District Attorney John Caisiano Thompson was charged with murder. The AI system had misinterpreted a post from the San Mateo County DA's office Twitter account announcing that they had charged a different person with murder. The AI incorrectly merged the account name 'San Mateo County District Attorney' with the beginning of the tweet about the actual suspect, creating the false impression that the DA himself was the one charged. The article was attributed to Eileen Vargas, one of Hoodline's AI-generated fake reporter personas. After being called out by Techdirt, Hoodline added an editor's note claiming it was a simple 'typo' that created ambiguity. The false story was discovered when it appeared in Google News feeds. The actual San Mateo County DA is Stephen Wagstaffe, not the person named in the false report.
Domain classification, causal taxonomy, severity scores, and national security assessments were LLM-classified and may contain errors.
AI systems that inadvertently generate or spread incorrect or deceptive information, which can lead to inaccurate beliefs in users and undermine their autonomy. Humans that make decisions based on false beliefs can experience physical, emotional or material harms
AI system
Due to a decision or action made by an AI system
Unintentional
Due to an unexpected outcome from pursuing a goal
Post-deployment
Occurring after the AI model has been trained and deployed