The present invention provides a method for providing a medical counseling service in a virtual environment of picture archiving and communication system (PACS) data access to protect PACS data. The method includes the following steps of: saving medical record data uploaded for a medical counseling service from a device which requested a medical counseling; requesting counseling data regarding saved medical record data to a medical counseling device; remotely controlling a viewer program to be operated in the medical counseling device when the medical counseling device requests access to medical record data; temporarily loading medical record data to a memory cache of the medical counseling device during an operation of the viewer program; and automatically deleting the medical record data filed in the memory cache of the medical counseling when the viewer program ends.
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