What's the difference between machine insurance and social security?

Social security in a broad sense has a wider scope, and there is no difference between social security and five insurances in enterprises and institutions. The full name of social security is social insurance, which refers to a social insurance or security mechanism to help citizens face certain social risks. For employees, social security is what is usually called "five insurances and one fund", namely: endowment insurance, medical insurance, unemployment insurance, work injury insurance and maternity insurance; One gold: housing accumulation fund.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.