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System and method to secure a computer system by selective control of write access to a data storage medium

DC
  • US 10,503,418 B2
  • Filed: 02/01/2017
  • Issued: 12/10/2019
  • Est. Priority Date: 12/01/2005
  • Status: Active Grant
First Claim
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1. In a computer comprising a storage medium and an application running on said computer in conjunction with an operating system that manages access to a data storage device, a method of controlling write access to said data storage device by said application comprising:

  • using the computer operating a detection process in a secure mode access an attempt by the running application to write data to said data storage device;

    retrieving from computer memory a permission data value result from a database comprised of data elements encoding either at least one permission value associated with the application or a value representing that no permission value for the application is present in the database;

    andcontrolling write access by the running application to store data to the data storage device in dependence on said retrieved permission result.

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