Japan internet giant GMO says hackers posted stolen customer data

Japanese internet company GMO Internet is investigating a data breach after suspected hackers accessed its Onamae cloud desktop service, which provides virtualized desktops to financial traders. The company believes the attackers published customer data, but the extent of the breach is unclear. Customers are advised to reset their passwords, and 27,000 servers may be affected. GMO Internet has not established a connection between this breach and a previously reported Chinese AI-enabled penetration testing tool called Artex, which was used in hacks targeting Japanese companies and South Korean financial institutions. The Japanese Financial Service Agency issued guidance in May urging financial institutions to improve their cybersecurity measures, including vulnerability management and defense-in-depth strategies.