Method and apparatus to protect sensitive information on media processing devices
Methods and apparatus to protect sensitive information on media processing devices are disclosed. An example media processing device includes a processing engine configured to process a media processing instruction received at the media processing device, wherein the media processing instruction includes a command and data to cause a component of the media processing device to perform a function; and a data protector configured to determine whether the command is a data protection command; and when the command is the data protection command, modify the function to provide protection to the data.
1. A media processing device comprising:
a processing engine configured to process a media processing instruction received at the media processing device, the media processing instruction includes a command and data to cause a component of the media processing device to perform a function, the command being one of a non-sensitive command or a data protection command; and
a data protector configured to:
determine whether the command is the non-sensitive command or the data protection command;
when the command is the non-sensitive command, perform the function; and
when the command is the data protection command, modify the function to provide protection to the data,
wherein at least one of the processing engine and the data protector is implemented via a logic circuit.
2. The media processing device of claim 1 , wherein the media processing device is a printer and when the data protection command is encountered in connection with media processing instruction, the function prohibits use of the data except for printing in response to the media processing instruction.
3. The media processing device of claim 2 , wherein, after the printer prints the data, the data is erased from the printer to prevent subsequent reading or retrieval of the data from the printer.
4. The media processing device of claim 1 , wherein the media processing device is a printer and the media processing instruction is an encode instruction, and when the data protection command is encountered in connection with the encode instruction, the function prohibits use of the data except for encoding the data into a radio frequency identification (RFID) transponder embedded in media to be output by the printer.
5. The media processing device of claim 4 , wherein after the printer encodes the data to memory of the RFID transponder embedded in media output by the printer, the data is deleted from the printer to prevent access or retrieval of the sensitive information from the printer.
6. The media processing device of claim 1 , wherein the media processing device is a printer and when the data protection command is encountered, the function deletes or redacts portions of a tracking log associated with the data that is maintained by the printer.
7. The media processing device of claim 1 , wherein the media processing device is a printer and when the data protection command is encountered, the function denies requests to modify a format of a print job or an image to be rendered by the printer using the data in response to the media processing instruction.
8. The media processing device of claim 7 , wherein, when the data protection command is encountered, the printer logs unauthorized attempts to modify the format or access the data.
9. The media processing device of claim 8 , wherein the printer logs details associated with the unauthorized attempts including at least one of a date, a time, or a user identity.
10. The media processing device of claim 1 , wherein the command and data are a string a characters in which the characters of the command in the string proceed the characters of the data in the string.
11. The media processing device of claim 1 , wherein the media processing device outputs media based on the media processing instruction and includes a watermark on the media indicative of at least one of an identity of the media processing device, a user of the media processing device that initiated the media processing instruction, or a time and date at which the media was output.
12. The media processing device of claim 1 , wherein the function is modified in accordance with a value received from a control table.
13. A method performed by a media processing device, the method comprising:
processing a media processing instruction received at the media processing device, the media processing instruction includes a command and data to cause a component of the media processing device to perform a function, the command being one of a non-sensitive command or a data protection command;
determining whether the command is the non-sensitive command or the data protection command;
when the command is the non-sensitive command, performing the function; and
when the command is the data protection command, modify the function to provide protection to the data.
14. The method of claim 13 , wherein the media processing device is a printer and when the data protection command is encountered in connection with media processing instruction, prohibiting use of the data by the function except for printing in response to the media processing instruction.
15. The method of claim 14 , wherein, after the printer prints the data, erasing the data from the printer to prevent subsequent reading or retrieval of the data from the printer.
16. The method of claim 13 , wherein the media processing device is a printer and the media processing instruction is an encode instruction, and when the data protection command is encountered in connection with the encode instruction, prohibiting use of the data by the function except for encoding the data into a radio frequency identification (RFID) transponder embedded in media to be output by the printer.
17. The method of claim 16 , wherein after the printer encodes the data to memory of the RFID transponder embedded in media output by the printer, deleting the data from the printer by the function to prevent access or retrieval of the sensitive information from the printer.
18. The method of claim 13 , wherein the media processing device is a printer and when the data protection command is encountered, deleting or redacting, by the function, portions of a tracking log associated with the data that is maintained by the printer.
19. The method of claim 13 , wherein the media processing device is a printer and when the data protection command is encountered, denying, by the function, requests to modify a format of a print job or an image to be rendered by the printer using the data in response to the media processing instruction.
20. The media processing device of claim 19 , wherein, when the data protection command is encountered, the printer logs unauthorized attempts to modify the format or access the data.