Maybe you've already heard the word, "sandboxing." Jim Hamm finds something that explains it. He writes, "Sandboxing is here in Lion, and soon will be for apps as well. A prime example of Sandboxing in Lion is that Safari no longer connects directly to the web. Another process does that. Sandboxing is meant to be an additional security for a Mac user. I think this is a good step by Apple, but there are other thoughts on this. Here's an article that provides further insight into Sandboxing."