Japanese internet company GMO Internet is investigating a data leak after unauthorized access to its Onamae cloud desktop service.
The incident, which may impact up to 27,000 servers, prompted a service shutdown, password resets, and ongoing verification of allegedly published customer and business data.
The company said that unknown individuals gained unauthorized access to its systems and published information allegedly related to customers and its business, but its content is still being verified. There have also been reports of unauthorized actions on trading accounts, and the company estimates that up to 27.000 server computers may be affected.
The chronicle of the attack and the ransom
The case began on October 21, when GMO Internet suspended the service after detecting illegal access. According to the company, on the same day, an email was sent from unknown individuals demanding a ransom of about 8 billion yen, equivalent to about $50 million.
In the following days, the company contacted the police and government agencies, announced that it would offer compensation and alternative service to its customers, and began collecting devices to detect malicious software. GMO Internet recommended that its customers change their passwords.
The previous security investigation
This development comes a few weeks after the same company's security unit reported on the use of a Chinese artificial intelligence tool in attacks against Japanese companies, although GMO Internet said it has not publicly linked the specific tool to its own breach.
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