Secure deletion of information from hard disk drive

  • US 7,275,139 B1
  • Filed: 12/02/2004
  • Issued: 09/25/2007
  • Est. Priority Date: 12/02/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of securely deleting data from a storage medium comprising:

  • generating a bitmap that determines locations to be wiped on the storage medium;

    initiating a background process that wipes the locations, the background process running asynchronously with respect to a user application and independently any of file access requests issued by the user application to the locations to be wiped, the background process comprising;

    wiping the locations, andupdating the bitmap to reflect that the locations have been wiped.

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