Chiasson and Newman traded on inside information they received from a corrupt group of analysts who regularly shared such information.

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Writing here at CNN.com in December, I ridiculed Ijaz's suggestion that the U.S. government would ever have shared such information with the government of Pakistan, and reminded readers of Ijaz's history of unreliability.

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The outcome of the subsequent investigation was never revealed but now there is a growing demand that such information is shared with the public.

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The coroner said he was reassured that information was shared among the relevant authorities in such cases.

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In addition, an unprecedented amount of information on potential problems and solutions was shared within industries such as finance, aviation and communications.

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Gleaning potentially sensitive information about someone that isn't explicitly shared, such as sexual orientation or drug use, could be abused by companies as well as governments and potential employers.

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An example of an application that does not work well in a simple cloud environment is a shared database, such as the typical Oracle database application, where the information is one big block of data that needs to be manipulated all the time by many computing processes and where access to the shared data needs to be synchronized and managed.

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Until now, Facebook provided an option so you could specify that your information not be shared with others when one of your friends adds such an app.

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By its nature, such information is public, while company data by its nature is proprietary and shared only when the company is forced to by law or self-interest.

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