After the old man died, the social security card was automatically cancelled.

What you want to ask is whether the social security card will be automatically cancelled after the old man dies and cancels his account? number

According to the inquiry method, there is no specified time for the cancellation of social security cards. Issue a death certificate to the police station where the household registration is located, and apply for cancellation at the social security service center with the household registration book and the valid certificate of the relatives of the deceased.