Production data is the data that is used in the actual operation of a system or application, such as customer information, financial records, transactions, etc.

Test data is the data that is used in the testing or development of a system or application, such as dummy data, sample data, simulated data, etc.

A risk practitioner has become aware of production data being used in a test environment. This indicates that there is a risk of unauthorized access, use, disclosure, modification, or destruction of the production data, which may affect the confidentiality, integrity, and availability of the data.

The primary concern of the risk practitioner in this situation is the sensitivity of the data. This means that the risk practitioner should assess how valuable, critical, or confidential the data is, and what would be the impact or consequence if the data is compromised or lost.

The sensitivity of the data helps to determine the level of protection and control that is needed to safeguard the data, and the priority and urgency of the risk response actions.

The other options are not the primary concerns of the risk practitioner in this situation. They are either secondary or not essential for data protection.

The references for this answer are:

Risk IT Framework, page 32

Information Technology & Security, page 26

Risk Scenarios Starter Pack, page 24