Yes, as I said in my comment, property is commonly recognized as a human right.

Nothing in that Wikipedia article says anything about being conned or deceived out of your property, and my question is whether a right to not be conned can be derived from that right. Do I have a fundamental human right to hold onto my property even if I am making a decision to give it up that other people think is unsound? Does that right prevent me from giving up my property? (There are, in general, rights that prevent you from doing things - for instance, I'd say that the right to liberty prevents you from consenting indefinitely to authoritarian government. Is this one of them?) Or do I have a fundamental human right to do with my property as I wish, and a right to not have my decisions second-guessed by the government?

For example, several jurisdictions believe that I cannot give up all copyright claims to some software I write, and that whatever I do, I maintain a "moral right" or "author's right" to the software, and even if I want to promise someone that they can literally do whatever with the software, the laws prevent me from doing that. I think this is a violation of my liberty, but clearly the people writing the laws think that I am being conned.