Nintendo Confirms Data Breach After Hacker Group Claims Theft of Sensitive Corporate Data

Japanese multinational video game and entertainment company, Nintendo said it suffered a significant data security incident after a group of threat actors claimed to have breached into its internal network and stole confidential company data.

Recently, a group of threat actors, going by the name Crimson Collective, claimed responsibility for breaching Nintendo’s internal network. According to cyber security watchdog Hackmanac, the attackers shared alleged proof of the intrusion online, displaying what appeared to be folders and files taken from the company’s internal systems.

Acknowledging the claims of the hacker group, in a statement shared with local media, Nintendo said that the breach did not involve any development or business-related information. Furthermore, no personal or payment data of players were affected by the incident.

“We have not confirmed any leak of personal information, and there has been no leak of development or business information. Some external servers that display Nintendo’s website were defaced, but there was no evidence of damage to customers or intrusion into the company,” Nintendo said.

Earlier this month, the hacker group said it stole nearly 570GB of compressed data from enterprise software giant Red Hat, across 28,000 internal development repositories. The stolen data included credentials, CI/CD secrets, pipeline configs, VPN profiles, and infrastructure blueprints.

Among the stolen data are nearly 800 Customer Engagement Reports (CERs), which often contain sensitive insights into a customer’s network and systems. These reports, typically prepared as part of consulting engagements, may include infrastructure diagrams, configuration details, access credentials, and other information that could be leveraged to infiltrate customer networks.

Red Hat confirmed that the breach involved its GitLab instance used exclusively by Red Hat Consulting for client engagements — not its GitHub repositories.