The Electricity and Gas Market Surveillance Commission, a body of the Ministry of Economy, Trade and Industry, said on October 28 that Dentori Net, a website that collects regular reports from electricity retailers and gas retailers, was hit by unauthorized access and has been shut down.
The commission said it is still checking whether any information was leaked. Until the system is restored, it will accept reports by email.
Dentori Net is the site where power and gas operators submit sales volumes, numbers of contracts and other figures to the commission online. The commission confirmed on October 28 that unauthorized access occurred in the early hours of October 27, and said it is now investigating the cause and considering measures to prevent a recurrence.
The shutdown leaves operators in the two markets that the commission oversees without their usual online filing channel. The commission has not said how long restoration will take.