By Tom Simonite, Technology Review
A new computer chip will help tackle one of the Web’s weak spots—the fact that most data is exchanged without any protection against hackers or eavesdroppers. For some communications, such as credit card payments and online banking transactions, it is standard to encrypt the information that users and websites send each other. But most online activity is completely unprotected, largely because encrypting communications requires extra work from Web servers and software, which is costly to implement. Search queries and social media updates, for example, are almost exclusively sent in forms easily read by a third party snooping on Web traffic. Listening in to Web traffic can be as simple as using the same Wi-Fi network as the target, as Ashton Kutcher found when his Twitter account was hijacked at the TED conference earlier this year, by means of a Firefox add-on called Firesheep.
http://www.technologyreview.com/computing/38336/?p1=A6
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