Making my living working with computers requires me to be aware of various security issues and how to handle them. Everything from viruses, to spam, and even to encryption. But sometimes I'm fortunate enough to observe the humanity behind the computers. And sometimes this humanity itself is a security issue. Humans are mostly social creatures. They want to interact with each other and share information. Humans can also be parasites trying to better themselves or their environment at the expense of others. This dual nature of us humans leads to some interesting situations. We trust.