A social insurance number is not like a credit card, which is a bank's only way of identifying that person. It is an identifier used by employers for as long as people are in the workforce. It is also used for various programs and services.
At the moment, no computer system links all those systems so that social insurance numbers can be updated by employers and by the various groups and programs. That task would be done manually. That is why we do not know all the employers. In the federal government, it would be done manually. As I said, we have only done it a few times. There is a risk of errors. I am just mentioning this to the committee.