How can I protect my SIN?

There are a number of things you can do to protect your SIN:

  • Provide your Social Insurance Number only when you know that it is legally required.
  • Store any document containing your SIN and personal information in a safe place—do not keep it with you.
  • Contact Service Canada if you change your name, if your citizenship status changes, or if information on your SIN record is incorrect or incomplete.
  • Take immediate measures to protect your SIN when you suspect someone else is using your SIN fraudulently.

For additional tips on how to protect your SIN, see the publication Your Social Insurance Number: A Shared Responsibility!