The invention relates to a method for linking a terminal (1) into a region (4a) of an interconnectable computer infrastructure (2) which is designed for a plurality of users (6, 6a), said region being allocated to a user (6a). A user certificate (12a) is generated for the region (4a) allocated to the user (6a) and is provided to the user (6a) and/or the interconnectable computer infrastructure (2). A terminal certificate (16a) which is compatible with the user certificate (12a) is generated, and the terminal certificate (16a) is entered into the terminal (1). The terminal (1) is registered in the interconnectable computer infrastructure (2) via a data connection (20), wherein the terminal certificate (16a) and/or a password which is encrypted using the terminal certificate (16a) is transmitted from the terminal (1) to the interconnectable computer infrastructure (2) via the data connection (20) for the registration process. The terminal (1) is authenticated by checking the compatibility of the transmitted terminal certificate (16a) or the transmitted password encrypted using the terminal certificate (16a) with the user certificate (12a) in the interconnectable computer infrastructure (2), and in the event of a successful authentication for the terminal (1), the use of the interconnectable computer infrastructure (2) is released in the region (4a) allocated to the user (6a).