Your browser's cache may be helping hackers to help themselves to your information. During a Black Hat conference discussion on the topic, Corey Benninger, a senior consultant at McAfee's Foundstone division, described cached browser information as a ticket for instant hacker gratification.

The browser cache is intended as a usability feature that helps to expedite a user's browsing experience. It stores page and other data so that when a user clicks the back button in a browser session, for example, the browser can reload the page from cache.

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