Ion cyber outage continues as banks rely on workarounds

ABN Amro, Macquarie, RBC among firms hit; ransom deadline tomorrow, but service may be down for days to come

Ion Trading
Photo: Timon Schneider/Alamy Stock Photo

A cyber attack that forced Ion Trading to shut down a key futures trading service on January 31 could take several days to resolve, leaving dozens of dealers relying on workarounds to execute and process client trades. can confirm that ABN Amro, Macquarie and RBC are among those affected.

In a statement, Macquarie says the bank “maintains core operational capability, manually processing trades … [and has] completed processing for each day of the outage. Macquarie’s market access and

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