Spanish researchers show that ChatGPT, Gemini, Claude and other AIs leak chat data to advertisers

Researchers from IMDEA Networks and Universidad Carlos III de Madrid examined nine AI assistants in May 2026 from Spain and found that they forward chat content to advertisers. The study covered ChatGPT, Claude, Grok, DeepSeek, Gemini, Perplexity, Microsoft Copilot, Mistral and Meta. These findings highlight privacy concerns surrounding current AI conversational services.

Summary written by Kernelia from the original article by Genbeta — IA. The story and its rights belong to its author.