Sega Corp. said Sunday that hackers broke into the website of its London unit, Sega Europe Ltd., and stole personal information on all of its 1,290,755 registered users.
The users of the website are mostly in Europe and North America, the major game software company said as it worked to quickly disclosed the number of people believed affected.
It said the stolen information comprises names, birth dates, email addresses and encrypted passwords but no credit card data.
The hacking follows a similar attack on the Sony group in April that affected up to 100 million people.
“We deeply regret we have invited a situation like this. We will put highest priority on tightening security and make efforts to recover the confidence” of our users, the Japan-based company said in a statement.
The hackers infiltrated Sega Europe’s Sega Pass website, which primarily offers product news.
The website was shut down after the unauthorized access was detected on Thursday.