What is Data Security?

Data security encompasses all technical measures that ensure the protection of data. It ensures that information is protected from unauthorized access, manipulation, and loss.

Core Objectives of Data Security

Data security is crucial to ensure the confidentiality, integrity, and availability of data. These three characteristics represent the core objectives of data security. They are defined as follows:

Confidentiality: Only authorized persons may access the data. This prevents unauthorized access and protects sensitive information.
Integrity: Data must remain unchanged and correct, protected from both manipulation and technical errors.
Availability: Data should be accessible and usable at all times when needed.

Measures to Ensure Data Security

Various technical and organizational measures exist to ensure data security. These include:

Access Control (Physical): This ensures that only authorized persons have physical access to data processing systems.
Access Control (Logical): It protects IT systems and data from unauthorized access.
Authorization Control: It limits permissions to the necessary minimum.
Transmission Control: This ensures that data cannot be read or copied without authorization during transmission.
Input Control: It provides traceability of who entered which data and when.
Job Control: This ensures that data is processed only according to specifications.
Availability Control: This includes measures for data recovery in case of physical or technical problems.
Data Separation: Data for different purposes must be processed separately to avoid mixing.

Risks and Dangers

Data security faces challenges from technical vulnerabilities and unauthorized access, especially on the internet. For example, software can be insecure if it does not store data correctly or loses it. Therefore, regular updates and security checks are essential.

Difference from Data Protection and Data Sovereignty

While data security concerns the general technical protection of all types of data, data protection focuses specifically on the protection of personal data. Data protection also regulates the collection, processing, and transfer of this data to protect privacy. Data security provides the technical framework, while data protection also covers legal and ethical aspects.

Data security technically protects data, while data sovereignty ensures control over its use and storage: The latter allows natural and legal persons to determine where and how their data is stored and who can access it.

Conclusion

Data security is an integral part of modern information systems. It protects data from threats and ensures the operational capability of companies. By combining technical measures and organizational processes, risks can be minimized.