My first response to that question is that as our first line we would try to retrieve it as quickly as possible. The second thing, if we find out about the misdirected mail, is that we advise the taxpayer, if we think there's a risk of harm, and encourage them to contact the CRA. We can either provide them with some support with Equifax, the credit services, and/or we can put a flag on their file so that we are aware that there's a concern there might be identity theft.
On April 8th, 2014. See this statement in context.