Japan internet giant GMO says hackers posted stolen customer data

GMO Internet is investigating a data leak after suspected unauthorized access to its Onamae cloud desktop service, which provides virtualized desktops to financial traders, and said it believes the attacker has published information allegedly linked to customers and its business, though the contents are still being verified. The company advised customers to reset passwords amid reports of "unauthorized operations" on customer trading accounts, and said 27,000 servers may be affected. GMO said it has not publicly established a connection between the breach and the Artex AI penetration testing tool its cybersecurity unit separately reported finding evidence of in hacks targeting companies across Japan.