The relevance of cloud computing, especially cloud storage services, was growing steadily within the last years. By getting more acceptance from customers, there are several new issues coming up, especially the question of data security. Therefore this paper analysis impacts on data security in the future, based on recent encryption methods like AES and TLS used in combination with RSA, on a non-calculation perspective and without taking into account key exchange methods like Diffie Hellman. This paper discusses why it is important to think about data security issues right from today.