| 摘要 |
<p>The present invention relates to a data loss prevention method. According to an embodiment of the present invention, a data loss prevention method comprises the steps of: transmitting a first process′s PID as a network connection PID from a network filter driver to a file filter driver when the first process connects to a network; storing, by the file filter driver, the network connection PID in a network connection PID list; checking, by the file filter driver, whether a second process′s PID is included in the network connection PID list and tagging a second file, when the second process accesses the second file; checking the tag of the first file and controlling, by the network filter driver, the transmission of the first file according to the tag of the first file, when the first process is trying to transmit the first file through the network.</p> |
