Amazon Web Services (AWS) reported an outage on Thursday at a data centre in northern Virginia, caused by elevated temperatures that reduced cooling capacity. Cryptocurrency exchange Coinbase confirmed the AWS failure was responsible for degraded performance on its trading platform, though it assured users that customer funds remained safe and said it was working to restore trading. Derivatives marketplace CME Group (the world's largest exchange for futures and options contracts) also reported technical and latency issues on its CME Direct platform, though it did not identify a cause, and said essential maintenance had since been completed and users could log back in.