Capcom, the Japanese game maker behind the "Resident Evil" and "Street Fighter" franchises, has confirmed that hackers stole customer data and files from its internal network following a ransomware attack earlier in the month.
That's an about-turn from the days immediately following the cyberattack, in which Capcom said it had no evidence that customer data had been accessed.
In a statement, the company said data on as many as 350,000 customers may have been stolen, including names, addresses, phone numbers and, in some cases, dates of birth. Capcom said the hackers also stole its own internal financial data and human resources files on current and former employees, which included names, addresses, dates of birth and photos. The attackers also took "confidential corporate information," the company said, including documents on business partners, sales and development.
Capcom said that no credit card information was taken, as payments are handled by a third-party company.
But the company warned that the overall amount of data stolen "cannot specifically be ascertained" due to losing its own internal logs in the cyberattack.
Capcom apologized for the breach. "Capcom offers its sincerest apologies for any complications and concerns that this may bring to its potentially impacted customers as well as to its many stakeholders," the statement read.
The video games maker was hit by the Ragnar Locker ransomware on November 2, prompting the company to shut down its network. Ragnar Locker is a data-stealing ransomware, which exfiltrates data from a victim before encrypting its network, and then threatens to publish the stolen files unless a ransom is paid. In doing so, ransomware groups can still demand a company pays the ransom even if the victim restores their files and systems from backups.
Ragnar Locker's website now lists data allegedly stolen from Capcom, with a message implying that the company did not pay the ransom.
Capcom said it had informed data protection regulators in Japan and the United Kingdom, as required under European GDPR data breach notification rules. Companies can be fined up to 4% of their annual revenue for falling foul of GDPR rules.