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A New 'dawn' in Exchanges' War on Hackers

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Hack attack

A majority of exchanges suffered a cyberattack in the past year.

Credit: The Wall Street Journal

When prices on some U.S. stocks suddenly zoomed one day last month and others unexpectedly plunged, stock-market officials set out to detect a possible computer glitch or a trading algorithm run amok.

From The Wall Street Journal
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