Social security did not pay the prosecution period in full.

Legal analysis: the limitation of prosecution for labor security supervision is generally 2 years. If the employer infringes upon the rights and interests of workers, and the workers have not reported or complained within 2 years and have not been discovered by the administrative department of labor security, the administrative department of labor security will no longer investigate and deal with it. The 2-year period shall be counted from the date of violation of labor security laws, regulations or rules.

Legal basis: Article 71 of the Labor Law of People's Republic of China (PRC) stipulates that the level of social insurance should be compatible with the level of social and economic development and social affordability.

Article 72 The sources of social insurance funds shall be determined according to the types of insurance, and social pooling shall be gradually implemented. Employers and workers must participate in social insurance and pay social insurance premiums according to law.