Data loss prevention (DLP) is an attempt to monitor common communication channels for the presence of controlled data, and to mask the data, preventing its transmission in readable format. The market has grown into booming business since then, with products from a variety of sources, both commercial and open source. The major players in the DLP market include Symantecantec, McAfee and McAfee. A key prerequisite to the loss prevention process is understanding what data elements you have, and where they are.”]
Source: https://www.csoonline.com/article/2953479/closing-the-data-floodgates.html