The purpose of this paper is to demonstrate parts of the implementation of a secure cloud storage solution for small and mediumsized
enterprises (SMEs). It shows by example of an Austrian SME how secure cloud-based storage services can be applied in
practice. In order to give an introduction to the topic, the paper first discusses some basic principles of cloud storage. The core of
this paper eventually focuses on a cloud storage solution considered to be optimal for SME purposes and exemplifies how it
could be implemented within such a company considering its particular requirements. As the primary focus of this work is on
security aspects, it discusses how the system’s attack surface is minimized and necessary software components are hardened in
order to defy network-based attacks. The paper concludes with a discussion on various data security and encryption mechanisms.