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Expand your mind and your crypto knowledge with the ultimate desktop dictionary for all things cryptography. Written by a renowned cryptographer for experts and novices alike, Crypto Dictionary is rigorous in its definitions, yet easy to read and laced with humor. Flip to any random page to find something new, interesting, or mind-boggling, such as:
 

   • A survey of crypto algorithms both widespread and niche, from RSA and DES to the USS

You might still be reeling from the news that personal information from 533 million facebook accounts has been made freely available online.

But now there’s another huge batch of people’s data floating around the web — including data from LinkedIn, the Microsoft-owned social network confirmed. And the potential scope of the leak is huge: an individual selling the