I can say—André please jump in if you'd like—when we observe things in foreign intelligence space, we do find nation-states and other actors making use of vulnerabilities in software in order to defeat things, like encryption, and to gain access to communications that should otherwise be protected.
When we see this in a foreign space, we will provide information of that type to our colleagues in the cyber centre and other agencies in Canada that take action, which might include providing mitigation advice or notifying vendors to make sure that those back doors are dealt with.