In computer security, a concept that applies to data that must be held in confidence and that describes the status and degree of protection that must be provided for such data about individuals as well as organizations.

• 计算机安全学中的一个概念，用于必须秘密处理的数据，对这种数据个体及其组织必须提供保护，对这种保护的状态和程度需要加以描述。