Security and Encryption at Modern Databases

Data is a most valuable part of most of nowadays system. A lot of hackers and criminals are trying to steal this data all the time. Due to that data should also be the best protected part of every company's systems. We would like our systems to be impenetrable, but that is not possible. If we want to protect the data, in case our system is compromised, we need to use encryption. This article describes traditional ways of database encryption, modern concept of securing data and some possible concepts how to secure the data using encryption. All of these approaches are discussed from high-level point of view to show their impact on security of entire system.