Using responsible discretion when handling the data refers to being cautious about how and where the data is stored, who has access to it, and ensuring that it is not disclosed to unauthorized parties. This is the core principle of maintaining the confidentiality of data. Encrypting the data provides an additional layer of security by rendering the data unreadable should it fall into the wrong hands, which adheres to the practice of maintaining confidentiality. Discussing project details in public undermines confidentiality, as it can lead to unauthorized disclosure of sensitive information. Failing to lock computers leaves data exposed to unauthorized access, also breaching confidentiality.