Tinfoil Hat provides extra privacy configuration for your blog.
WordPress sends different and varied types of information hither and thither across the Internet. While this is innocent and innocuous from the developer standpoint, there is the feeling that anyone not wanting some or all of this information sent around needs a "tinfoil hat." This, in addition to the desire to keep configuration clean and simple, means that there are very limited options for information privacy control with WordPress out-of-the-box.
Some people have privacy or security needs that are above that of the normal population. Some folks are simply sensitive about what information is shuttled where. Tinfoil Hat aims to provide a comprehensive set of information control options, so that you can have a higher degree of control over how and if WordPress sends data to other services.