Sen. Elizabeth Warren (D-Massachusetts) has demanded more information from Defense Secretary Pete Hegseth regarding xAI's access to Pentagon classified networks. She also expressed concerns that the company's chatbot, Grok, could pose reliability concerns for the U.S. military. Warren expressed concern that Grok could potentially leak classified information, revealing sensitive military plans, and potentially putting service members at risk. The Department of Defense confirmed that no single prompt is used to define the company’s operational capability and its readiness to collaborate with the government.