Billionaire Elon Musk’s DOGE team is expanding use of his artificial intelligence chatbot Grok in the US federal government to analyse data, said three people familiar with the matter, potentially violating conflict-of-interest laws and putting at risk sensitive information on millions of Americans.

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Grok, developed by Musk’s xAI and launched via his social platform X, is designed to generate responses based on user queries. Experts warn that if it is processing sensitive or personal information from government databases, it may breach long-standing federal laws, including the Privacy Act of 1974.