The US arm of the Industrial & Commercial Bank of China was hit by a ransomware attack, reportedly causing disruptions to the US Treasury market.

ICBC, the world’s largest bank by assets, announced on 9 November that US-based ICBC Financial Services “experienced a ransomware attack that resulted in disruption” to certain internal systems on 8 November. The bank said the impacted systems were immediately disconnected and isolated, and law enforcement was notified.