Back in the days of black and white TV the good guys in the westerns wore white hats. Fast forward to the present day and the white hat still has the same meaning,but it now refers to computer hackers who work to hack security systems to find faults before the black hat hackers find them first. One example was shown at a hackers show in Las Vegas. A white hat hacker with nothing more than a laptop hacked into two ATM machines he had purchased on e-Bay and had them spewing money out on the stage,he dubbed the hack "jackpotting". This also applies to some medical devices,like computerized insulin delivery systems and pacemakers. Former Vice-President Cheney had the wireless capabilities disabled on his pacemaker to prevent assassination attempts. It is comforting to know there are still some people working for the good guys.
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