It has been reported that United Airlines will restrict unauthorized third-party AI agents or assistants from booking flights or managing itineraries on behalf of users, tightening access through its digital platforms, travel agencies, and aggregation platforms. United Airlines stated that sharing account credentials with individuals or third-party AI assistants may lead to exposure of sensitive information, unintended purchases, account modifications, or mileage misuse; certain actions could also violate federal aviation regulations, such as requiring manual confirmation by staff during check-in that baggage does not contain prohibited items. The company said it will subsequently update its booking, ticketing, and distribution policies. Previously, banks including Bank of America had also warned customers against sharing account passwords with AI assistants.