Abstract: A real-time-bidding process that includes security mechanisms that limits access to various aspects of the bidding process including communications between bidders, the user browser, and the auctioneer, and the content of bids received and utilized by the user browser.

Abstract: A method and system provide the ability to select media content and an advertisement to be displayed by a user/user device. In response to a received request for media content (e.g., by a broadcast programming provider or content provider) from a particular user device (e.g., a subscriber receiver station or thin client device), a real-time auction is conducted to select a winning advertisement. The auction includes the dynamic request and receipt of a bid, a determination of the winning bid, and the providing of the winning advertisement to be displayed with the media content.