A Single Source of Truth (SSoT) is a cybersecurity and data management concept where all critical information is stored, maintained, and accessed from a single, authoritative location. This ensures consistency, accuracy, and reliability of data across an organization. By relying on one definitive source, organizations reduce errors, eliminate data silos, and streamline decision-making processes. In cybersecurity, SSoT helps maintain data integrity, supports compliance efforts, and simplifies auditing by ensuring that all users and systems refer to the same, up-to-date information. Implementing SSoT typically involves integrating various data sources and enforcing strict access controls to protect sensitive information.