Hackers have hit Square Enix, the games developer behind popular online games Final Fantasy and Dragon Quest, and it is believed 1.8m users’ accounts may have been affected.
The Japanese games publisher announced on its site that it was suspending the service pending the outcome of its investigation.
Square Enix said that so far it has not found any evidence that the hacker accessed personal information and it has determined that login credentials were not hacked.
The attack on Square Enix is the latest in a series of high-profile attacks by hackers that dominated 2011. A devastating cyber attack was launched on Sony’s PlayStation Network servers earlier this year, with hackers accessing information on more than 77m users. The Sony Online Network (SOE) was also hit.
Square Enix temporarily suspends members’ operations
In a statement, Square Enix said: "As a result of our continuing investigation into the unauthorised intrusion reported yesterday, Square Enix has now determined that user login credentials were not accessed. Moreover, we have not found evidence that the individual was able to access any personal information at all.
“We will be sending an email to all Square Enix members advising that an incident took place. This email will not be requesting any action from you.
“We have reported this incident to the Japanese Government. Because we have decided to conduct a broader internal investigation, it will take a few more days before we make the Square Enix members service available once again. We deeply regret the inconvenience this may have caused our customers and fans, and appreciate your patience," the company said.