The reasons to utilize HTTPS when accessing any personal accounts aren't new, but an easy to use extension for FireFox called “FireSheep,” released in October 2010 spiked concern, as it enables HTTP session hijacking for the masses. Firesheep essentially enabled the average Joe to instantly hacks into common Facebook, Twitter, Hotmail and many more sites With Ease. The extension makes something that was already possible, but typically harder to do, incredibly easy. Gmail now users HTTPS by default, and Facebook as recently added the option to enable HTTPS by default. Twitter now joins the default HTTPS party."
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