The Government of Canada can take away someone’s citizenship. This is called citizenship revocation. There are a variety of cases where the government will revoke your citizenship.
The government will revoke your citizenship if you lied or misrepresented yourself during the citizenship application process. In this case, you will become a permanent resident. You must wait 10 years before applying for citizenship again. If the government finds that you got your permanent resident status through misrepresentation, you will become a foreign national.
The government will revoke your citizenship if it finds that you got or maintained your citizenship through serious fraud or misrepresentation. Under international law, Canada is allowed to completely revoke the citizenship of people in this situation. If this happens, the person will be “stateless” unless they have dual citizenship.
The government will also revoke the citizenship of anyone convicted of terrorism, treason, or any other high crimes against Canada. It will also revoke the citizenship of anyone who serves in an organized military group engaged in conflict with Canada. Under international law, citizenship can only be revoked from people in these situations if they are dual citizens of Canada and another country.
During the revocation procedure, you have all the same rights as a Canadian citizen.