The document discusses the concept of social security. Social security is defined as a program established by society to protect individuals from risks like sickness, unemployment, old age, and accidents that they cannot independently plan for. It aims to provide security for members of society through organized measures that address contingencies such as employment injuries, sickness, disability, maternity leave, old age, and unemployment. Social security systems are implemented through laws and practices that provide cash benefits to compensate for lost income due to these risks. Benefits can be provided through social insurance, social assistance, and public services with the objectives of increasing productivity, improving health, preventing occupational diseases, and caring for old age.