Leonard J. LaPadula

Leonard J. LaPadula was a computer scientist known for creating a security model used in government and military systems. His model establishes rules for how information can be accessed and shared, ensuring sensitive data is protected. It specifies that users can only read information at or below their security level and can only write to areas at or above their clearance. This prevents unauthorized disclosure or modification of classified information, helping organizations maintain security and control over sensitive data.