It ensures that when the workers have given their effort and energy to any organization and the society, he does not become a liability to his family, his employer and to the society. Social security measures ensure that the workers are provided protection and security in their life time.
For example, Social Security pays benefits to disabled workers who meet medical and insured requirements. Benefits paid to disabled workers and their families may be reduced for receipt of certain public disability benefits (such as Workers' Compensation).
Social security functions as a social security device (social safety net) for ensuring stable and anxiety-free lives in preparation against difficulties that might endanger the stability of living such as illness, injury, need for care, unemployment, retirement without means to earn money, and unforeseen accidents.