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System and method for content protection on a computing device

  • US 8,700,920 B2
  • Filed: 05/28/2012
  • Issued: 04/15/2014
  • Est. Priority Date: 04/30/2004
  • Status: Active Grant
First Claim
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1. A method of securing a mobile device, the method comprising:

  • receiving input for locking the mobile device;

    encrypting data entered in plaintext in at least one field of a user interface, wherein the data is encrypted in response to locking the mobile device;

    clearing the plaintext data from the screen, wherein the data is cleared in response to locking the mobile device;

    storing the encrypted data on the mobile device, wherein the encrypted data is stored in response to locking the mobile device;

    receiving input for unlocking the mobile device;

    decrypting the encrypted data, wherein the data is decrypted in response to unlocking the mobile device; and

    displaying the decrypted data in the at least one field of the user interface, wherein the decrypted data includes content displayed on the user interface at the time of locking the mobile device.

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