Japan’s GMO Internet warns users of impending ransomware attack

Japan's GMO Internet Group has warned its Onamae service users to disconnect their PCs from the network following a threat of a ransomware attack and the potential leaking of personal data by midday on Tuesday, October 27th. The company advised customers to back up their data, power down their computers, and unplug them from the power source before noon.

GMO's statement, obtained from their website, was translated from Japanese. The company informed that it had received a notice from the suspected attacker about the impending attack. GMO had recently disclosed a major cyber attack last week, which led to unauthorized access to its Onamae.com remote desktop platform and resulted in the breach of customer data and unauthorized foreign exchange trades.

The company has assured customers that it would compensate for any losses. GMO also made it clear that it would not pay a $50 million ransom and refused to comply with the hacker's demands. Consequently, the company's shares rose by 1.7% on Tuesday, following a sharp decline of nearly 16% in the previous session.