Methods and systems for remotely removing metadata from electronic documents

• US 9,807,093 B2
• Filed: 01/29/2015
• Issued: 10/31/2017
• Est. Priority Date: 01/29/2007
• Status: Active Grant

• Current Assignee: Litera Technology LLC
• Original Assignee: Litera Technology LLC
• Inventors: Massand, Deepak
• Primary Examiner(s): Edwards, Linglan
• Application Number:
  US14/608,585
• Publication Number:
  US 20150143548A1
• Time in Patent Office: 1,006 Days
• CPC Class Codes: G06Q 10/107 Computer-aided management of electronic mailing [e-mailing]
• CPC Class Codes: H04L 51/00 User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
• CPC Class Codes: H04L 51/063 Content adaptation, e.g. replacement of unsuitable content
• CPC Class Codes: H04L 51/08 Annexed information, e.g. attachments
• CPC Class Codes: H04L 51/212 using filtering or selective blocking
• CPC Class Codes: H04L 51/216 Handling conversation history, e.g. grouping of messages in sessions or threads
• CPC Class Codes: H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 63/1441 Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002

Abstract

A method and system for remotely removing metadata from electronic documents includes receiving an electronic document from an electronic device, determining that the electronic document includes a pre-determined type of metadata, and generating a request for confirmation that at least a portion of the pre-determined type of metadata should be removed. Based on the confirmation, at least a portion of the pre-determined type of metadata is removed from the electronic document before it is transmitted.

Claims

1. A computer-based system for remotely cleaning metadata from electronic documents, comprising:

an intermediate computer that is remote from an electronic device, the intermediate computer including;

a memory storing instructions; and

a processor configured execute the instructions to;

receive an electronic document from the electronic device, determine that the electronic document includes a pre-determined type of metadata,

generate a request for confirmation by a user of the electronic device that at least a portion of the pre-determined type of metadata should be removed,

based on the confirmation, remove at least a portion of the pre-determined type of metadata from the electronic document, and

store or transmit the electronic document having at least a portion of the pre-determined type of metadata removed.

2. The computer-based system of claim 1, wherein the processor is further configured to execute the instructions to generate a message confirming the removal of at least a portion of the pre-determined type of metadata.

3. The computer-based system of claim 1, wherein the electronic device is a mobile electronic device.

4. The computer-based system of claim 1, wherein the processor is further configured to execute the instructions to receive an electronic document from the electronic device by email.

5. The computer-based system of claim 1, wherein the pre-determined type of metadata comprises a portion of the metadata in the electronic document.

6. The computer-based system of claim 5, wherein the processor is further configured to execute the instructions to generate a request, to the user of the electronic device, for a selection of the metadata to be removed from the electronic document.

7. The computer-based system of claim 1, wherein the processor is further configured to execute the instructions to remove at least a portion of the pre-determined type of metadata from the electronic document according to a default cleansing policy.

8. A non-transitory computer-readable storage medium storing instructions for remotely cleaning metadata from an electronic document, the instructions causing one or more computer processors to perform operations comprising:

receiving, at an intermediate computer that is remote from an electronic device, an electronic document from the electronic device,

determining that the electronic document includes a pre-determined type of metadata,

generating a request for confirmation by a user of the electronic device that at least a portion of the pre-determined type of metadata should be removed,

based on the confirmation, removing at least a portion of the pre-determined type of metadata from the electronic document, and

storing or transmitting the electronic document having at least a portion of the pre-determined type of metadata removed.

9. The storage medium of claim 8, wherein the instructions cause the one or more computer processors to further perform the operation of generating a message confirming the removal of at least a portion of the pre-determined type of metadata.

10. The storage medium of claim 8, wherein the electronic device is a mobile electronic device.

11. The storage medium of claim 8, wherein the instructions cause the one or more computer processors to further perform the operation of receiving an electronic document from the electronic device by email.

12. The storage medium of claim 8, wherein the pre-determined type of metadata comprises a portion of the metadata in the electronic document.

13. The storage medium of claim 12, wherein the instructions cause the one or more computer processors to further perform the operation of generating a request, to the user of the electronic device, for a selection of the metadata to be removed from the electronic document.

14. The storage medium of claim 8, wherein the instructions cause the one or more computer processors to further perform the operation of removing at least a portion of the pre-determined type of metadata from the electronic document according to a default cleansing policy.

15. A computer system for transmitting cleansed versions of electronic documents, the computer system being remote from an electronic device, and comprising:

an intermediate computer in communication with the electronic device, the intermediate computer comprising a processor configured to perform the operations of;

receiving, at the intermediate computer, an electronic document from the electronic device,

determining that the electronic document includes a pre-determined type of metadata,

generating a request for confirmation by a user of the electronic device that at least a portion of the pre-determined type of metadata should be removed,

based on the confirmation, removing at least a portion of the pre-determined type of metadata from the electronic document, and

storing or transmitting the electronic document having at least a portion of the pre-determined type of metadata removed.

16. The computer system of claim 15, wherein the processor is further configured to generate a message confirming the removal of at least a portion of the pre-determined type of metadata.

17. The computer system of claim 15, wherein the electronic device is a mobile electronic device.

18. The computer system of claim 15, wherein the processor is further configured to receive an electronic document from the electronic device by email.

19. The computer system of claim 15, wherein the pre-determined type of metadata comprises a portion of the metadata in the electronic document.

20. The computer system of claim 19, wherein the processor is further configured to generate a request, to the user of the electronic device, for a selection of the metadata to be removed from the electronic document.