Data protection method and device

The invention provides a data protection method and device, a storage medium and a processor, and relates to the technical field of information security. The protection method comprises the followingsteps: when a file is recorded, calling a first interception function to monitor whether a recording action of recording a locally stored target file to an optical disk occurs or not; when the first interception function monitors a burning action of burning the locally stored target file to the optical disc, analyzing the target file by utilizing the first interception function; and when the firstinterception function determines that the target file comprises preset information, intercepting a file adding function by utilizing the first interception function to burn the target file to a burning action of the optical disc. By utilizing the method, whether the recorded content is sensitive or not can be determined on the premise of not limiting the normal use of the optical disk by the user, and the recording action