Audience-based sensitive information handling for shared collaborative documents

• US 9,824,237 B2
• Filed: 03/03/2017
• Issued: 11/21/2017
• Est. Priority Date: 05/01/2015
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bhogal, Kulvir S., Brunn, Jonathan F., Hoy, Jeffrey R., Silva, Asima
• Primary Examiner(s): REVAK, CHRISTOPHER A
• Application Number:
  US15/448,988
• Publication Number:
  US 20170177905A1
• Time in Patent Office: 263 Days
• Field of Search: None
• CPC Class Codes: G06F 16/3331 Query processing
• CPC Class Codes: G06F 16/93 Document management systems
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 21/6254 by anonymising data, e.g. decorrelating personal data from the owner's identification
• CPC Class Codes: G06F 2221/2141 Access rights, e.g. capability lists, access control lists, access tables, access matrices
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting

Abstract

A method for providing audience-based redaction of sensitive information in an electronic document may include receiving a request from a computing device to access an electronic document, retrieving the electronic document, identifying the user(s) associated with the computing device, determining an access level for each user associated with the computing device, determining the lowest access level for the user(s) associated with the computing device, generating a rendering of the electronic document for display on the computing device based on the lowest access level for the user(s) associated with the computing device, and providing the rendering of the electronic document to the computing device for display. When generating the rendering of the electronic document for display, sensitive information in the electronic document is typically redacted based on the lowest access level for the user(s) associated with the computing device.

Claims

1. A system for providing audience-based redaction of sensitive information in an electronic document, comprising:

a processor;

a memory;

a module for providing audience-based redaction of sensitive information stored in the memory, executable by the processor and configured for;

receiving a request from a first user via a first computing device to create a first electronic document;

creating the first electronic document and storing the first electronic document in a document database;

based on redaction rules, automatically searching the first electronic document to identify sensitive information, the sensitive information comprising first sensitive data;

based on searching the first electronic document to identify the sensitive information, creating redaction metadata, wherein the first electronic document comprises the redaction metadata identifying the sensitive information and required access levels;

receiving a request from a second computing device to access the first electronic document stored in the document database;

retrieving the first electronic document from the document database;

identifying one or more users associated with the second computing device;

based on identifying the one or more users associated with the second computing device, determining an access level for each of the one or more users associated with the second computing device, wherein determining the access level for each of the one or more users associated with the second computing device is further based on determining a social network relationship between the first user and the one or more users associated with the second computing device;

based on determining the access level for each of the one or more users associated with the second computing device, determining a weakest access level for the one or more users associated with the second computing device;

creating a rendering of the first electronic document, wherein the rendering of the first electronic document is created by redacting the first sensitive data from the first electronic document based on the redaction metadata and the weakest access level for the one or more users associated with the second computing device;

providing the rendering of the first electronic document to the second computing device for display;

receiving an edit to the redacted first sensitive data of the first electronic document from the second computing device;

based on receiving the edit, updating the redaction metadata to preserve the first sensitive data; and

updating the rendering of the first electronic document based on the edit to the redacted first sensitive data.

2. The system of claim 1, wherein:

a first access level has a right to view the first sensitive data, and a second access level does not have a right to view the first sensitive data; and

the weakest access level for the one or more users associated with the second computing device is the second access level.

3. The system of claim 2, wherein:

the sensitive information of the first electronic document comprises second sensitive data;

the first access level has a right to view the second sensitive data, and the second access level has a right to view the second sensitive data; and

creating the rendering of the first electronic document comprises not redacting the second sensitive data from the first electronic document based on the weakest access level for the one or more users associated with the second computing device being the second access level.

4. The system of claim 3, wherein the module is further configured for:

receiving a request from a third computing device to access the first electronic document;

identifying one or more users associated with the third computing device;

based on identifying the one or more users associated with the third computing device, determining an access level for each of the one or more users associated with the third computing device, wherein determining the access level for each of the one or more users associated with the third computing device is further based on determining a social network relationship between the first user and the one or more users associated with the third computing device;

based on determining the access level for each of the one or more users associated with the third computing device, determining a weakest access level for the one or more users associated with the third computing device, the weakest access level for the one or more users associated with the third computing device being a third access level, the third access level does not have a right to view the first sensitive data or the second sensitive data;

creating a second rendering of the first electronic document, wherein the second rendering of the first electronic document is created by redacting the first sensitive data and the second sensitive data from the first electronic document based on the weakest access level for the one or more users associated with the third computing device being the third access level; and

providing the second rendering of the first electronic document to the third computing device for display.

5. The system of claim 2, wherein the module is further configured for:

determining that the weakest access level for the one or more users associated with the second computing device has changed; and

based on determining that the weakest access level for the one or more users associated with the second computing device has changed, updating the rendering of the first electronic document.

6. The system of claim 1, wherein the module is further configured for:

receiving a second edit to the first electronic document from the first user via the first computing device;

based on receiving the second edit, automatically searching the first electronic document to identify changes to the sensitive information;

based on identifying changes to the sensitive information, updating the redaction metadata and updating the rendering of the first electronic document.

7. The system of claim 1, wherein the one or more users associated with the second computing device comprise a plurality of users.

8. A computer program product for providing audience-based redaction of sensitive information in an electronic document comprising a non-transitory computer-readable storage medium having computer-executable instructions for:

receiving a request from a first user via a first computing device to create a first electronic document;

creating the first electronic document and storing the first electronic document in a document database;

based on redaction rules, automatically searching the first electronic document to identify sensitive information, the sensitive information comprising first sensitive data;

based on searching the first electronic document to identify the sensitive information, creating redaction metadata, wherein the first electronic document comprises the redaction metadata identifying the sensitive information and required access levels;

receiving a request from a second computing device to access the first electronic document stored in the document database;

retrieving the first electronic document from the document database;

identifying one or more users associated with the second computing device;

based on identifying the one or more users associated with the second computing device, determining an access level for each of the one or more users associated with the second computing device, wherein determining the access level for each of the one or more users associated with the second computing device is further based on determining a social network relationship between the first user and the one or more users associated with the second computing device;

based on determining the access level for each of the one or more users associated with the second computing device, determining a weakest access level for the one or more users associated with the second computing device;

creating a rendering of the first electronic document, wherein the rendering of the first electronic document is created by redacting the first sensitive data from the first electronic document based on the redaction metadata and the weakest access level for the one or more users associated with the second computing device;

providing the rendering of the first electronic document to the second computing device for display;

receiving an edit to the redacted first sensitive data of the first electronic document from the second computing device;

based on receiving the edit, updating the redaction metadata to preserve the first sensitive data; and

updating the rendering of the first electronic document based on the edit to the redacted first sensitive data.

9. The computer program product of claim 8, wherein:

a first access level has a right to view the first sensitive data, and a second access level does not have a right to view the first sensitive data; and

the weakest access level for the one or more users associated with the second computing device is the second access level.

10. The computer program product of claim 9, wherein:

the sensitive information of the first electronic document comprises second sensitive data;

the first access level has a right to view the second sensitive data, and the second access level has a right to view the second sensitive data; and

creating the rendering of the first electronic document comprises not redacting the second sensitive data from the first electronic document based on the weakest access level for the one or more users associated with the second computing device being the second access level.

11. The computer program product of claim 10, wherein the non-transitory computer-readable storage medium has computer-executable instructions for:

receiving a request from a third computing device to access the first electronic document;

identifying one or more users associated with the third computing device;

based on identifying the one or more users associated with the third computing device, determining an access level for each of the one or more users associated with the third computing device, wherein determining the access level for each of the one or more users associated with the third computing device is further based on determining a social network relationship between the first user and the one or more users associated with the third computing device;

based on determining the access level for each of the one or more users associated with the third computing device, determining a weakest access level for the one or more users associated with the third computing device, the weakest access level for the one or more users associated with the third computing device being a third access level, the third access level does not have a right to view the first sensitive data or the second sensitive data;

creating a second rendering of the first electronic document, wherein the second rendering of the first electronic document is created by redacting the first sensitive data and the second sensitive data from the first electronic document based on the weakest access level for the one or more users associated with the third computing device being the third access level; and

providing the second rendering of the first electronic document to the third computing device for display.

12. The computer program product of claim 9, wherein the non-transitory computer-readable storage medium has computer-executable instructions for:

determining that the weakest access level for the one or more users associated with the second computing device has changed; and

based on determining that the weakest access level for the one or more users associated with the second computing device has changed, updating the rendering of the first electronic document.

13. The computer program product of claim 8, wherein the non-transitory computer-readable storage medium has computer-executable instructions for:

receiving a second edit to the first electronic document from the first user via the first computing device;

based on receiving the second edit, automatically searching the first electronic document to identify changes to the sensitive information;

based on identifying changes to the sensitive information, updating the redaction metadata and updating the rendering of the first electronic document.

14. The computer program product of claim 8, wherein the one or more users associated with the second computing device comprise a plurality of users.