To protect against fraud, U.S. banks will be issuing credit cards with small computer chips. But some experts say using a PIN to complete a transaction is more secure than a signature.
The Toyota Prius, seen here at the New York International Auto Show in March, was one of the cars security experts Chris Valasek and Charlie Miller showed to be susceptible to attacks by hackers.
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Big Data may not be much to look at, but it can be powerful stuff. For instance, this is what the new National Security Agency (NSA) data center in Bluffdale, Utah, looks like.
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