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Article Published on The Hacker New Magazine – September Edition “Security in a serious way”
The Deep Web (or Invisible web) is the set of information resources on the World Wide Web not reported by normal search engines, according a raw estimation of some security experts clear web represents only a small portion of the overall web content, the remaining part is unknown to the majority of web users.
Ordinary web users are literally shocked when understand the existence of the Deep Web, a network of interconnected systems, not indexed, having a size hundreds of times higher than the current web, around 500 times.
To explain the Deep Web I use to cite the definition provided by the founder of BrightPlanet, Mike Bergman, that compared searching on the Internet today to dragging a net across the surface of the ocean: a great deal may be caught in the net, but there is a wealth of information that is deep and therefore missed.