Systems and methods for securing stored computer files from modification

  • US 10,936,742 B1
  • Filed: 07/01/2019
  • Issued: 03/02/2021
  • Est. Priority Date: 07/15/2014
  • Status: Active Grant
First Claim
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1. A control system for securing computer files from modification, comprising a control circuit configured to be placed operatively between a computer-system processor and both a first internal data storage area and a non-volatile second internal data storage area physically separate from the first data storage area, to operatively couple the processor to the first and second internal data storage areas, to operate in a first mode to allow communication from the processor to the first internal data storage area of all commands received from the processor, to block communication to the second internal data storage area of commands that are configured to modify the second internal data storage area, and to allow communication to the second internal data storage area of commands received from the processor that are configured not to modify the second internal data storage area, and to operate in a second mode to allow communication from the processor to the first and second internal data storage areas of all commands received from the processor.

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