Classified information

Classified information is material that a government body claims is sensitive information that requires protection of confidentiality, integrity, or availability. Access is restricted by law or regulation to particular groups of people, and mishandling can incur criminal penalties and loss of respect. A formal security clearance is often required to handle classified documents or access classified data. The clearance process usually requires a satisfactory background investigation. Documents and other information assets are typically marked with one of several (hierarchical) levels of sensitivity—e.g. restricted, confidential, secret and top secret. The choice of level is often based on an impact assessment; governments often have their own set of rules which include the levels, rules on determining the level for an information asset, and rules on how to protect information classified at each level. This often includes security clearances for personnel handling the information. Although "classified information" refers to the formal categorization and marking of material by level of sensitivity, it has also developed a sense synonymous with "censored" in US English. A distinction is often made between formal security classification and privacy markings such as "commercial in confidence". Classifications can be used with additional keywords that give more detailed instructions on how data should be used or protected.

Official Secrets Act

The Official Secrets Act is a term used in Hong Kong, India, Ireland, Malaysia, and the United Kingdom, and formerly in Canada and New Zealand for legislation that provides for the protection of state secrets and official information, mainly related to national security.

List

Jersey

India

New Zealand

Ireland

United Kingdom

The Official Secrets Acts 1911 and 1920 means the Official Secrets Act 1911 and the Official Secrets Act 1920.The Official Secrets Acts 1911 to 1939 means the Official Secrets Acts 1911 and 1920 and the Official Secrets Act 1939.The Official Secrets Acts 1911 to 1989 means the Official Secrets Acts 1911 to 1939 and the Official Secrets Act 1989.

People working with sensitive information are commonly required to sign a statement to the effect that they agree to abide by the restrictions of the Official Secrets Act. This is popularly referred to as "signing the Official Secrets Act". Signing this has no effect on which actions are legal, as the act is a law, not a contract, and individuals are bound by it whether or not they have signed it. Signing it is intended more as a reminder to the person that they are under such obligations. To this end, it is common to sign this statement both before and after a period of employment that involves access to secrets (e.g. MI5/MI6).