(Reuters) - Citigroup Inc said a cyber attack in May affected almost twice as many accounts as the bank's figures had initially suggested, as major U.S. lenders come under growing pressure from lawmakers to improve account security. A total of 360,083 North American Citigroup credit card accounts were affected by the breach, the third-largest U.S. bank by assets said in a statement released late on Wednesday.

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(Reuters) - Two investors who say they have been making big money shorting Chinese stocks listed in the United States, fronted up to their adversaries this week -- in a mood to swagger. At an event in Beverly Hills attended by some of the bankers, auditors, promoters and lawyers who have made a living out of listing Chinese companies on U.S. exchanges, the short sellers were brutal in their assessment of how widespread fraud had become in the sector.

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(Reuters) - The IMF will release crucial loans to save Greece from default despite a likely delay by the European Union in agreeing a second bailout for the heavily indebted state, euro zone sources said on Thursday. The news came as Greek Prime Minister George Papandreou, beset by mass street protests and resignations from his ruling socialist party, was planning to reshuffle his cabinet and drive through a draconian austerity plan to meet EU/IMF terms.

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(Reuters) - Research In Motion will have to struggle to give investors good news when it reports results after markets close on Thursday, but details on when new BlackBerry devices will hit shelves might help. Strong sales of its PlayBook tablet -- which had six weeks on North American shelves in the company's first quarter to late May -- may also give RIM some respite from a barrage of criticism about falling behind tech giants Apple and Google in a fast-moving race.

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(Reuters) - Passenger jet sales will reach $4 trillion over the next 20 years, Boeing predicted on Thursday as it hiked demand forecasts on the eve of the Paris Air Show. The U.S. planemaker estimated a total of 33,500 jetliner sales by all manufacturers between 2011 and 2030, led by Asia which has already toppled North America as the busiest region for air travel and is set to dominate coming decades. Last year Boeing predicted 30,900 plane sales worth $3.6 billion over 20 years up to 2029.

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(Reuters) - Allstate Corp (ALL.N), the largest publicly traded U.S. home and auto insurer, said it lost $2 billion in April and May from severe tornadoes and thunderstorms, nearly equaling its catastrophe losses for all of 2010. The devastating two-month period, taken as one block, now ranks as one of the worst in Allstate's history, alongside events like the 1994 Northridge earthquake in California and Hurricane Andrew in 1992. In all of 2010, Allstate's catastrophe losses totaled $2.21 billion.

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(Reuters) - The Dow rose more than 1 percent in morning trading on Tuesday, while the S&P 500 and the Nasdaq added to gains above 1 percent as U.S. and Chinese data drew investors into a market that has been through six weeks of sharp declines. The Dow Jones industrial average .DJI was up 122.23 points, or 1.02 percent, at 12,075.20. The Standard & Poor's 500 Index .SPX was up 14.83 points, or 1.17 percent, at 1,286.66. The Nasdaq Composite Index .IXIC was up 35.49 points, or 1.34 percent, at 2,675.18.

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(Reuters) - Retail sales fell in May for the first time in 11 months as receipts at auto dealers dropped sharply and other spending softened, suggesting economic activity continues to slow. Retail sales slipped 0.2 percent, the Commerce Department said on Tuesday, after a 0.3 percent rise in April. Economists had expected retail sales to fall 0.4 percent.

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(Reuters) - Best Buy Co Inc (BBY.N) beat quarterly profit and sales estimates as strong demand for mobile phones, calling plans and tablets offset weakness in its TV business, and its shares rose more than 4 percent. The company, seen as a bellwether in consumer electronics, also cheered investors by buying back $505 million worth of common shares and backing its profit outlook for the year. It now sees sales at the high end of its $51 billion-$52.5 billion view.

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(Reuters) - The chief executive officers of large U.S. companies expect higher sales and higher capital spending in the next six months, but their optimism about economic conditions and expectations for growth are more muted than three months ago, according to a quarterly survey. The survey by Business Roundtable, an association of U.S. CEOs, found 51 percent expected to add U.S. jobs in the second half of the year, while 61 percent would boost capital spending. Both measures are down slightly from the previous quarter.

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