A therapist should only be sharing with people you have signed a release for them to talk to, at least, that's the way it is in the US. I'm not sure about other countries. I used to work in a counseling office and we weren't even allowed to confirm appointments to someone other than the client. We almost had an incident when our number showed up on caller ID and a spouse saw it and called back wanting to know why we called. I couldn't tell because there wasn't a release signed. It got to be a big deal because she was jealous and wanted to know why I was calling her husband. It's a tricky world in the land of confidentiality.