Dark web
A part of the Internet inaccessible by conventional means. Small, friend-to-friend, peer-to-peer networks form part of the dark web, as do such large anonymizing networks as Tor.
Data breach
Release of secure information into an insecure environment. A data breach may be intentional or unintentional. Physical loss of a device can constitute a data breach—not all data breaches are...
Data compromise
Same as “data breach”—the loss or exposure of information meant to be secure, private, or otherwise restricted.
Data exfiltration
Removal of data, especially the unauthorized removal of data, from a system or a network.
Data loss prevention
Measures taken to prevent loss or compromise of data. Commonly used to describe software designed to accomplish such prevention.
Data remanence
Residual representation of data that remains even after attempts have been made to remove or erase the data.
Data segregation
Division of data into various categories for purposes of dividing or restricting access to different classes of data.