What is the principle of “need-to-know” regarding classified information?

The principle of "need-to-know" is critical in the context of handling classified information. This principle asserts that access to classified information should be restricted to individuals who require that information to perform their official duties effectively. This means that even if someone holds a security clearance, they are not automatically entitled to access all classified information; they must demonstrate a legitimate need for the specific information in question. This approach helps protect sensitive data and limits the risk of unauthorized disclosure, ensuring that only those who need the information for their job can access it. Thus, it plays a vital role in data security and safeguarding national interests.