Data leakage Protection or Data Loss Prevention invloves the inspection and contextual analysis of data at rest on the end-point, in cloud applications and cloud storage or in motion over the network. The best results are obtained by combining hybrid solution of an against installed on the end-point and an active deveice inspecting the traif on the network (mail relay, proxy, or CASB soliution in the cloud). But as first step, the classification of the information is mandatory before applying any kind of security policy. www.trendmicro.com
Symantec, TrendMicro