After the social security card was replaced with a new card, the card number changed and the social security account number changed.

What you want to ask is that the card number has changed after the social security card was replaced with a new one, and has the social security account number changed? According to the French Open, after the social security card is replaced with a new card, the social security card number is generally unchanged, and the social security account is usually unchanged. The social security card number is usually associated with an individual's ID number and is unique, so even if a new card is replaced, the social security card number will remain unchanged. At the same time, the personal social security account is also established based on the ID number, which corresponds to the social security card number, so the social security account usually does not change because of the replacement of a new card. When replacing a new card, you may need to update some personal information, such as contact information and residential address, but the update of these information will not affect the social security card number and social security account number. In addition, if the social security card with financial function is replaced, the bank account number of the new card may be different, but it is separate from the social security account and social security card number and will not affect each other. It should be noted that if the social security card is lost or damaged and needs to be reissued, the reissued new card number may change, but the change in this case is to distinguish the lost card number, while the personal social security account remains unchanged. When you reissue a new card, you need to go through the formalities according to the relevant regulations, such as showing the original and photocopy of your ID card and filling out an application form. You can consult the staff of the local social security card service outlets for specific procedures.