United Airlines bans unauthorized third-party AI agents

United's move follows a wave of similar restrictions across US retail and banking. After Meta released its Muse personal AI agent in September, Amazon began blocking Muse shopping on September 20, citing no prior notice from Meta, Muse not identifying itself as an AI agent, and apparent collection and storage of customer login information. In finance, between October 13 and 20, JPMorgan Chase, Charles Schwab, Citigroup and Wells Fargo either blocked external AI agents that log in with customers' own credentials or shifted the risk to customers by contract. JPMorgan CEO Jamie Dimon said at an earnings briefing that the bank would not allow outside agents such as Muse or Instinct to operate within customer accounts, citing concerns about "runaway agents." Bank of America also emailed customers on October 27 urging them not to share credentials with AI assistants and warning that customers bear responsibility for transactions made after sharing. United's announcement, which also calls on other companies to consider similar steps, suggests the practice of walling off external AI agents is spreading beyond retail and finance into air travel, though United has not said which agents it will target or when enforcement starts.