Twitter on Monday increased the price of shares in its initial public offering to a range of US$23 to $25 per share and also revealed that IBM has claimed the company has infringed on several patents.

Twitter on Monday increased the price of shares in its initial public offering to a range of US$23 to $25 per share and also revealed that IBM has claimed the company has infringed on several patents.
FireEye could soon be known on the stock market as FEYE if its plans to go public in a $175 million bid made official with the SEC today come to fruition.
Wall Street played its own version of war games on Thursday, testing its defences against simulated cyber-attacks bent on taking down US stock exchanges.
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