The number of data security breaches we hear about is growing every year. There probably are many more that are not reported or that go undetected. Protecting your data may not be a choice, but instead might be mandated by law. In order to protect your companys most valuable asset, its data, you need to be diligent about building a security architecture, which appropriately secures your data.
In order to do this, you need to take a number of steps to setup your environment to make sure your data is not exposed to individuals that should not have access. Basic security practices are no longer practical for securing your confidential data. You need to take on a more proactive approach to cataloging your data, develop patch management practices, and adding multiple layers of authentication, to name a few things you should do to make your data more security.
Read this research paper by the Forrester Group to find out other things you should consider to secure your data. This paper should provide you with a good understanding of the different components and processes you should put in place to improve your existing architecture. Having a robust security architecture will provide you the best defense against data being stolen or compromised.