Monitor the data of a system while in use, transit or at rest to detect attempts to steal data It is a service designed to help discover, classify, and protect our most sensitive data
DLP can be an software or hardware solution

Endpoint DLP

Software that monitors the data in use on a computer
Can stop malicious activities or alert an administrator of the occurrence

Network DLP

Software or hardware-based system that is installed on the perimeter of the network
Used to monitor detect data in-transit

Storage DLP

Software installed on servers in the data centers to protect data at rest

Cloud DLP

Cloud SaaS that protects the data being stored in the cloud