For small systems with few participants, the Dataeagle 7000 gateway from Schildknecht offers the possibility of implementing secure M2M communication without having to set up a self-financed security architecture. The device uses the Amazon service 'Simple Storage Service' (3S) as cloud storage. The location of the server used can be selected by continent; the connection to the cloud storage is made via an SSL-secured protocol and can only be established by devices known to the server, which must legitimize themselves via a secure and complex authentication procedure. If the selected cloud service unexpectedly proves to be insecure at a later date or a device is stolen, it is possible to re-parameterize or deactivate devices that have already been installed from the outside. No valuable information such as documents, data series or images is transferred and stored, but only 'short-lived', constantly updated values that represent, for example, a meter reading, a temperature or a process image. In addition, a time stamp and status information are stored as a binary file, which may also be encrypted. Such a binary file is of no value to outsiders; for authenticated recipients, however, it provides specific information.