Patent ID: 8650166

Claim:
A computer-implemented method for classifying files, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: identifying data to be written to a file on a storage system, the file comprising a classified document; before the data is written to the storage system: identifying a characteristic of the data; identifying a file-placement policy; determining, based on the characteristic of the data, a classification for the file at least in part by: selecting a tag that corresponds to the characteristic of the data; associating the tag with the file; using the tag to select a location within the storage system where the file should be redirected from a different location to which the data was originally directed by applying the file-placement policy to the tag at least in part by using the tag to select a secure virtualization layer where the classified document should be redirected from an insecure base file system to which the data was originally directed; redirecting the data to the file at the selected location within the storage system.