London

City of London on High Alert After Ransomware Attack  A suspected ransomware attack on a key supplier of trading software to the City of London this week appears to have disrupted activity in the derivatives market. Ion Cleared Derivatives released a brief statement on Tuesday saying that it experienced a “cybersecurity event” that day which affected some of its services. “The incident is contained to a specific environment, all the affected servers are disconnected and remediation of services is…