A method for the access management of a wind turbine controller of a wind turbine with an operating software, comprising the following steps: - Receiving a user identification with one of several user interfaces (14a, 14b), - Assigning the user identification or a portion of the user identification to an access group (22a, 22b, 22c), wherein one or several authorization groups of an overall number of authorization groups is allocated to the access group (22a, 22b, 22c), and wherein one or several output value storage locations and/or input value storage locations are allocated to each authorization group, - Allowing an access from the user interface (14a, 14b) to all output value storage locations and/or input value storage locations that are allocated to the assigned access group (22a, 22b, 22c) via the authorization groups, wherein a localization identifier is received with the user identification, wherein the localization identifier indicates at least whether the user identification was received from a user interface (14a, 14b) lying within the wind turbine or from a user interface (14a, 14b) of a remote computer via a wind turbine interface and a received user identification is allocated to one of several different access groups (22a, 22b, 22c) as a function of the localization identifier received along with it and/or the operating software can assign an active status, wherein the active status can only be assigned at any point in time for a single user interface (14a, 14b) of the several user interfaces (14a, 14b), and access via a user interface (14a,1 4b) to an input value storage location is only permitted if the operating software of the user interface (14a, 14b) has assigned the active status, in particular after the active status was previously requested via the user interface (14a, 14b). - Receiving a user identification with one of several user interfaces (14a, 14b), - Assigning the user identification or a portion of the user identification to an access group (22a, 22b, 22c), wherein one or several authorization groups of an overall number of authorization groups is allocated to the access group (22a, 22b, 22c), and wherein one or several output value storage locations and/or input value storage locations are allocated to each authorization group, - Allowing an access from the user interface (14a, 14b) to all output value storage locations and/or input value storage locations that are allocated to the assigned access group (22a, 22b, 22c) via the authorization groups, wherein a localization identifier is received with the user identification, wherein the localization identifier indicates at least whether the user identification was received from a user interface (14a, 14b) lying within the wind turbine or from a user interface (14a, 14b) of a remote computer via a wind turbine interface and a received user identification is allocated to one of several different access groups (22a, 22b, 22c) as a function of the localization identifier received along with it and/or the operating software can assign an active status, wherein the active status can only be assigned at any point in time for a single user interface (14a, 14b) of the several user interfaces (14a, 14b), and access via a user interface (14a,1 4b) to an input value storage location is only permitted if the operating software of the user interface (14a, 14b) has assigned the active status, in particular after the active status was previously requested via the user interface (14a, 14b).