What is official secret? How to use in English

The term "official secret" can be traced back to the mid-19th century, when the concept of maintaining secrecy in government operations became increasingly important. The term "official" refers to matters related to the functioning of the government, and "secret" refers to information that is not openly disclosed to the public. The origins of the modern law governing official secrets can be traced to the British Official secrets Act 1911, which aimed to protect sensitive government information from disclosure during wartime. This act was enacted in response to the espionage of German agents during World War I, and it established criminal penalties for unauthorized disclosures of official secrets. The term "official secret" has since been adopted by other countries, including the United States, Australia, and India, and similar laws governing the disclosure of sensitive government information have been enacted. These laws generally protect a wide range of information, from military and intelligence operations to economic and diplomatic matters, in the interest of preserving national security. While the concept of protecting official secrets is widely supported, there have been controversies around the scope and application of such laws. Critics argue that they can be overly broad and infringe on freedom of speech and press freedom, while proponents maintain that they are necessary to protect national security and prevent serious harm to the country and its people. In summary, the term "official secret" refers to information held by the government that is not disclosed to the public, and it is protected by laws governing its disclosure in order to preserve national security. The origins of this term can be traced back to the mid-19th century, and similar laws have since been adopted by other countries.