More than 44,000 individuals have submitted formal objections to NHS England's use of the Palantir-powered Federated Data Platform for handling personal health information. The objections, lodged under UK data protection law, require the NHS to justify continued data processing with a 'compelling reason' or halt the activity. Campaigners cite concerns over Palantir's contracts with the Israeli military and U.S. immigration enforcement, as well as the company's involvement in a £330 million government agreement. Two parliamentary committees have urged Labour to activate a break clause in the seven-year contract effective February 2027. David Murray, a retired IBM engineer among those objecting, stated he supports NHS data utility but distrusts Palantir's involvement given its work with military and immigration entities. Amnesty International and patient group Just Treatment staged a protest outside Palantir's London office, referencing the company's ties to conflict zones. NHS England chief executive Jim Mackey acknowledged potential overstatement of the platform's public health benefits. Palantir claims the system has enabled 117,000 additional operations and reduced discharge delays by 14.3%, though its technology's application in Gaza has drawn criticism. The company maintains data remains under NHS control and is processed only per NHS instructions. A spokesperson for NHS England confirmed ongoing data governance within the platform framework and commitment to compliance with legal objections.