We do everything reasonably possible to protect our members' information. We don't give it out without a court order; that has never happened, by the way.
Those quaint red cards we issue could be a lot jazzier if we wanted to let a professional manufacturer stamp your name on them -- we don't.
We could put in for more recognition from government agencies if we'd release a members roster -- not doing that, either.
But we won't give you a membership unless we know who you are and you attest to same with your signature. That's for our protection and that of our other members.
If your situation is so serious that this still is not assurance enough, please, don't join. Our religion does not require martyrs.