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Cyber attack at financial data group Ion affects derivatives trading

Screen showing System Hacked message
Photo: Getty Images

The Financial Times

2 min read
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Industry working with clearing houses, platforms and regulators to assess hit to trade processing and clearing.

01 February, 2023 by Nikou Asgari, Harry Dempsey and Stephen Morris in London and Nicholas Megaw in New York

Financial data group Ion Markets has suffered a cyber attack that has affected parts of the vital financial plumbing that underlies the vast derivatives trading industry.

The Dublin-based company said its cleared derivatives

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