Data security requires constant attention and scrutiny to ensure that stored data, data in transit, and data in use is under the confidential, integrity, and availability (CIA) model. In this chapter, we look at the security issues, problems, and consequences of gaps in or the absence of safeguards to protect a network's data, software, and hardware resources. The problems, causes, and tools discussed in this chapter are the topics and concepts you should expect to see on the Server+ exam. The general topics covered in this chapter are as follows:
- Common data security problems
- Causes of common security problems
- Commonly used security tools and their use