"Sony Corporation has begun to investigate the possibility of establishing a Personal Net-Banking Service, " the company said in a statement.

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The Post Office, for its part, would act as a safety net, offering banking to the far-flung and financially excluded.

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It derives two-thirds of its net income from its banking and the remaining third from its insurance subsidiary.

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This yields a net employment outlook of -2% for a metropolis that relies heavily on jobs in banking, finance and communications.

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Trouble for the bank continued in the first quarter, with its net profit falling 12 percent year-over-year due to the impact of a special banking tax.

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Russian hackers, meanwhile, took to the Net, launching waves of distributed denial-of-service attacks against the country's government, banking and media Web sites, using thousands of personal computers hijacked with hidden software to overload the servers.

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