The Darknet

The Darknet is an overlay network that can only be accessed with specific software, configurations, or authorization, often using non-standard communications protocols and ports.

The Darknet in general may be used for various reasons, such as:
 * Hide from targeted and mass surveillance
 * Protect dissidents from political reprisal
 * Whistleblowing and news leaks
 * Computer crime (hacking, file corruption etc.)
 * Sale of restricted goods on darknet markets
 * File sharing (warez, personal files, pornography, confidential files, illegal or counterfeit software etc.)