What is a data security officer?

Data security is of great importance in the digital age. This is especially true for companies that manage and process large volumes of data—such as that of customers, suppliers, business partners, and employees.
Therefore, there should be someone primarily responsible for data security: a data security officer.

The term is not clearly defined. Data security officer, IT security officer, data protection officer—at first glance, these terms seem almost identical and interchangeable. However, upon closer inspection, differences can be identified.

Distinguishing between data protection, IT, and security topics

• Data protection refers to all technical and organizational measures taken to protect personal data within companies. 

• IT security concerns all measures taken to protect personal data from deletion, blocking, and manipulation within IT systems.

• Data security is about securing all data within a company—regardless of whether it is stored in IT systems or in other forms (files, microfiche, etc.).  

Learn more on our blog about the distinction between data protection and information security and the relationship between data protection and data security.

What are the legal requirements? 

There are hardly any specific legal requirements for IT security or data security. The obligation to ensure data security arises primarily from the general duty of care required for proper corporate governance. Exceptions apply in certain areas. However, specific legal regulations exist only regarding data protection under the Federal Data Protection Act (BDSG) and the GDPR. 

Security officer: Responsibilities are a matter of definition 

In accordance with this legal framework, the role of a data security officer—much like that of an IT security officer—is not mandatory, with the exception of the cases mentioned. Such requirements generally only exist for data protection officers. However, this should not prevent you from establishing such a position if needed. Having someone in the company dedicated full-time to data security issues offers a significant boost to your security posture.

The specific tasks, rights, and responsibilities of a data security officer are ultimately determined by the company's management. At its core, the role involves systematically and continuously analyzing data collection, management, and processing within the company, evaluating it for security, developing data protection policies, and monitoring compliance. 

Data Security Officer – What are the requirements?

Given the thematic proximity and overlap between data protection and data security, it might seem logical to combine both roles. However, this can be problematic, as the potential for conflicts of interest cannot be ruled out. In any case, the data protection officer must not have their neutrality or function compromised .

Like an IT security officer, a data security officer should be independent of the company's data management and processing operations . Otherwise, it would be difficult for them to act as an effective control or oversight body. In this sense, a data security officer cannot, for example, also serve as the IT manager or system administrator. Naturally, the individual should possess the necessary professional expertise (data security, IT systems, legal knowledge) and have a thorough understanding of the company's data processes. Reliability and diligence are further requirements. 

Internal or external data security officer

There is generally no reason why you cannot outsource the role of a data security officer to a competent and trustworthy service provider. This is particularly suitable for small and medium-sized enterprises. An objective, external perspective on operations and the ability to benchmark against other companies can even offer advantages over an internal data security officer.