The United States Department of Justice, joined by 15 states and the District of Columbia, has filed a landmark antitrust lawsuit against Apple, alleging the company maintains an illegal monopoly in the smartphone market. The complaint argues that Apple uses its control over the iPhone ecosystem to stifle competition, limit consumer choice, and increase costs for developers. Attorney General Merrick Garland stated that the company’s 'exclusionary conduct' harms both consumers and smaller competitors by restricting cross-platform messaging and third-party digital wallets. Apple has rejected the allegations, stating the lawsuit is 'wrong on the facts and the law' and warning that government intervention could hinder its ability to create the integrated technology users expect. Industry analysts suggest the legal battle could last years, with significant implications for how digital platforms manage proprietary hardware and software ecosystems.