Japan declares national cyber emergency after wave of attacks

Japan's government declared a cyber emergency after attacks hit rail operator JR East, internet services, retailers and police. The trigger included a leak of 1.67 million email addresses at JR East, lost licence scans at Times Car and a ransomware attack on IDC Frontier; Tokyo is also moving to active cyber defense.

• JR East reported the loss of 1.67 million email addresses
• Times Car lost scans of customers' driving licences
• Ransomware hit cloud provider IDC Frontier, cascading to linked bodies
• Japan is introducing active cyber defense against attackers