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SYSTEM AND METHOD FOR SECURING A BROWSER AGAINST FONT USAGE FINGERPRINTING

Abstract:

In a method for securing a web browser, display instructions for displaying web content are received from a content server by a web browser operating on a client computing device. The web browser creates a document object using the display instructions and determines from the document object whether one or more of the display instructions meet font profiling criteria selected to identify attempts to profile font display characteristics of the web browser. Responsive to a determination that font profiling criteria are met, the web browser alters a character display of the document object and implements the document object for displaying the web content on the client computing device.