A method and system are provided for access to distributed data. The system includes a first entity (201-203) storing client data (221-223), the first entity (201-203) requiring access information (220) to access the client data (221-223). A storage device (200), held by the client, provides the access information (220) to access the client data (221-223). A second entity (204) is capable of accessing the stored client data (221-223) from the first entity (201-203) when provided with the access information (220) from the client. A plurality of first entities (201-203) may store client data (221-223) for a single client and the storage device (200) may include a list of the locations and access information (220) for all the first entities (201-203). The storage device (200) may be, for example, a smart card or USB key.