/klæsɪfaɪd ˈdeɪtə/ – Phrase
Definition: tư liệu mật.
A more thorough explanation: Classified data refers to information that has been designated as sensitive and is subject to protection and control measures in accordance with specific laws, regulations, or government policies. This designation is typically used to restrict access to the information to authorized individuals or entities in order to prevent unauthorized disclosure or misuse.
Example: The company’s classified data must be stored securely to prevent unauthorized access.