Your data stays 100% private: Pigshell is a client-side web app. All the code runs entirely in your browser. The server cannot see a single bit of your data, like files, photos, friend lists or even your name.
Your pictures, posts and files are fetched to your browser directly from the corresponding service like Facebook, Google and Twitter.
We don't even know your email address, so we can't send you email, let alone give it to others.