Sanitation workers of Yuzhou Senyuan Smart Sanitation Technology Co., Ltd. have insurance. Social security is also social insurance, and the labor law requires employers to pay social security for employees. And if the unit does not buy social security for employees according to the regulations, it will only start to buy social security after becoming a formal employee. These are all illegal acts. At this time, you can complain to the social insurance fee collection agency and order the employer to correct it.