Why did the money in the social security card suddenly disappear?

Hello, dear, the money of social security card suddenly disappeared. There are probably the following situations: the first is that the money was deducted by the social security bureau. This friend may be an on-the-job employee and will deduct a certain amount from the bank account of the social security card every month to pay the endowment insurance and medical insurance. When his social security card bank account has money, the Social Security Bureau will deduct it at the corresponding time. For example, he saved 4000 yuan in the social security card, and may forget to pay the social security for four months, so when the funds in the social security card are sufficient, it is likely to be deducted at one time. Second, the money is still in the bank account of the social security card, but he didn't find it. It's easier to do this. You just need to bring your social security card and ID card to the manual service office at the bank counter to withdraw money. This happens to some people because their bank accounts have not been activated and their passwords have not been changed. Third, will the money be taken away or stolen by others? You need to check with the bank and ask the bank to print a statement for you, so that you can clearly see when the deposit was deposited and when it was transferred or taken away.