The Surface Web is the layer of the internet that is indexed by conventional search engines and accessible without restriction. This layer includes code repositories, paste sites, file sharing platforms, and social media networks.

The Deep Web and Dark Web include the layers of the internet that are not indexed by conventional search engines and for which accessibility varies. Dark Web networks maintain highly restricted access, and are often home to illicit or criminal activities.

Connected Storage includes any storage devices, drives, or databases that connect to the internet. This includes the devices and dedicated-function objects comprising the Internet of Things (IoT). Connected devices are often insecure by design, and enterprises’ employees and third parties frequently expose data through these devices when they travel outside network perimeters.