Abstract: A data processing system and a data processing method are capable of concealing files and folders. The data processing system of the invention includes a data storage device and at least one processor. When an application process is started and executed by the at least one processor to search a designated folder in the data storage device through a storage device driver residing in a kernel mode of an operating system, a storage filter driver residing in the kernel mode of the operating system judges if there are any files in the designated folder which have not been searched, and if any, the storage filter driver retrieves a next file in the designated folder through the storage device driver. If the storage filter driver determines that the application process is untrusted and determines that the next file is a concealed file, the storage filter driver does not return the next file.

Abstract: A data processing system and a data processing method are capable of concealing files and folders. The data processing system of the invention includes a data storage device and at least one processor. When an application process is started and executed by the at least one processor to search a designated folder in the data storage device through a storage device driver residing in a kernel mode of an operating system, a storage filter driver residing in the kernel mode of the operating system judges if there are any files in the designated folder which have not been searched, and if any, the storage filter driver retrieves a next file in the designated folder through the storage device driver. If the storage filter driver determines that the application process is untrusted and determines that the next file is a concealed file, the storage filter driver does not return the next file.