I would have to bring it up. I would not be able to just ignore something like that. And if it impacts your trust in her, it does cause you harm.

What I would do is preface it with saying something like "I was never this paranoid before X happened, but since that happened I'm having problems trusting professionals." And then tell her what you found out.

I can think of another explanation though. In my state anyone who is getting a LCSW license has to get a certain number of hours of practice while he or she is in school. Those hours have to be supervised by a person with an LCSW license, but it can really be anyone with that license. In fact, while a person is in school he or she actually has two supervisors...one employed by the school and one employed by the community agency where the student is doing field work. Those people are called "supervisors" by everyone associated by the school, but I do not believe they have any special license from the state board. They are licensed just like any other LCSW.

To apply for a provisional license a graduate would have to have a recommendation from both the school supervisor and the clinical supervisor. At that point the graduate has an MSW, but not a full LCSW license. That takes an additional two years of clinical supervision. Following that he or she can file for a full license after which case they can practice independently. Those supervisors might be licensed differently than regular LCSWs. I think it is similar for most professions.