Japan steps up cyber warnings as data leaks hit millions of customers

Japan's National Cybersecurity Office ordered ministries, local authorities and companies to strengthen defences after a wave of attacks exposed data of millions of customers. More than 20 major Japanese firms disclosed breaches, including Times Car's 6.6 million accounts and JR East's 1.67 million email addresses.

• More than 20 major Japanese companies disclosed attacks in recent weeks
• Times Car leaked data from about 6.6 million member accounts, including licence images
• JR East lost 1.67 million customer email addresses
• Active cyber defence law in force since 1 October allows access neutralization