The Deep Web consists of web content that is not indexed by standard search engines and can only be accessed using special software like TOR or Freenet. It contains over 7,500 terabytes of information across 550 billion documents on over 200,000 websites, far greater in size and quantity than the surface web. While most of the Deep Web contains publicly accessible information, it also provides anonymity for networks of users conducting both legal and illegal business, such as drug dealers, assassins, and terrorists.