The New Year’s Eve ransomware attack on Travelex has disrupted foreign currency cash transactions for many large banks including Barclays, Lloyds and Westpac; the internal networks and consumer facing apps for Travelex have been offline since the attack and their popular airport kiosks have resorted to manual operations; they also have a lesser known service helping banks handle foreign cash with a network of high security vaults in 14 countries including the U.S. which has also been affected; the hackers are demanding $3 million of they will release five gigabytes of stolen data including sensitive personal information. Wall Street Journal