What is the primary focus of data security measures?

Data security measures are fundamentally aimed at safeguarding sensitive information and ensuring its integrity, confidentiality, and availability. The primary focus is on protecting data from unauthorized access, which can lead to breaches, theft, or exposure of personal and sensitive information. Additionally, these measures help prevent corruption of data, ensuring that information remains accurate and reliable over time, and mitigate the risk of data loss, which could result from various threats such as cyberattacks, hacking, or natural disasters.

In contrast, enhancing data visualization techniques focuses on how data is presented and interpreted, which does not directly address security concerns. Improving the speed of data processing primarily pertains to system efficiency and performance rather than measures to protect data. Lastly, creating complex algorithms for data analysis deals with data interpretation and is unrelated to the security aspects of managing data. Thus, option C accurately captures the essence of what data security measures are designed to achieve.