Security classification is a system used to categorize information based on its sensitivity and the potential impact of its unauthorized disclosure. This classification helps protect national security, personal privacy, and sensitive business information. Common levels include Confidential, Secret, and Top Secret, each indicating a different degree of risk associated with the information. Organizations, including government agencies and private companies, implement security classification to manage access to sensitive data. Employees are trained to understand these classifications and follow protocols to ensure that information is shared only with authorized individuals. This system helps maintain the integrity and confidentiality of critical information.