“Deep Web” is the set of information resources on the World Wide Web not indexed by normal search engines. It is around 500 times greater than the overall clear (generally accessible/indexed) web content, and it is unknown to the vast majority of web users. The biggest problem is that not all content can be discovered by crawling from one page to the next. On the flip side, with all the massive data collection going on around the world, we may like to use the Deep Web to protect ourselves.”]