Classified information refers to data that is kept secret for national security or sensitive reasons. This type of information is often related to government operations, military strategies, or intelligence activities. Access to classified information is restricted to authorized personnel only, ensuring that it does not fall into the wrong hands. Governments use different levels of classification, such as Top Secret, Secret, and Confidential, to indicate how sensitive the information is. Unauthorized disclosure of classified information can lead to serious consequences, including legal action. Protecting this information is crucial for maintaining national security and safeguarding the interests of a country.