first of all how do you know they are doing that, my wife and i had the same situation, so we emailed CIC and told them about it, we also called them,they told us to email cic and tlel them to add some more security question especially if u gonna call cic over the phone,we found that cic is not very secure with the questions they ask,so we were very much afraid. we had a circumstance were my ex wife tried to withdraw my sponsorship application with my present wife, that was a seriouse scare for us.