Transparency and Trust

I am very uncomfortable when someone tells me secrets or asks me not to tell a specific person something. It makes me suspicious. What more don't I know? What has the person tried to keep me from knowing? What are they doing that they are ashamed of doing?
I'm told I tend to be too open about things. I don't see a need to hide a lot. If I can't trust you to know things about me, then it is one of two problems. 1) It's something I shouldn't be doing or saying 2) You are using that information in a way to purposely hurt me.
I sincerely avoid doing and saying things I shouldn't.
If you take information from me and use it to purposely hurt me, I should avoid you.
I believe in transparency because it builds trust. It builds trust personally. It builds trust professionally.
Obviously, I'm going to protect certain information from getting into the hands of people who cannot be trusted. I don't want criminals getting my financial information, for example.
But when I begin to hear couples tell friends not to tell their spouse something - where they were, or about a shopping trip or about a speeding ticket or worse - it's a sign of a bigger problem. Transparency and trust.
With businesses, it's the same thing. If a lot is being hidden from the public or employees or management, there's probably a bigger problem.