The invention relates to a method for enabling the user of at least one mobile terminal to access one or more of a plurality of services corresponding to a published tag by receiving published tag data and user identification data corresponding to a user who scanned the published tag and determining whether the services corresponding to the published tag data is available for users. A unique key is generated for the user, which may be provided to the user's mobile device and is indicative of the scanned published tag. The user may then present the unique key at a user terminal to obtain access to the one or more services. Moreover, because each unique key is specific to a user and/or a mobile device, a centralized secure management entity may log usage statistics of the published tags for later reference by the user.