SHADOWBYT3$ Allegedly Claim Breach of Nintendo, Stealing Sensitive Data

Cybersecuritynews •Abinaya • June 15, 2026

Threat intelligence sources have reported that the threat actor group SHADOWBYT3$ has allegedly breached Nintendo, claiming to have exfiltrated approximately 859 MB of sensitive internal data. The incident, first observed on June 13, 2026, remains unverified at the time of writing. However, early details suggest potential exposure of employee-related information. The alleged breach is linked […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Shadowbyt3 Ransomware Group Claims Nintendo Employee Data Theft via TINYpulse On June 14, 2026, the ransomware group Shadowbyt3$ announced a breach involving TINYpulse, claiming to have exfiltrated 859 MB of sensitive employee data from Nintendo. The attack targeted TINYpulse, an HR platform, rather than Nintendo's gaming infrastructure, affecting 115 Nintendo employees and exposing personal information such as W9 forms and private messages. The attackers have set a ransom deadline of June 16, 2026, threatening to leak the data if their demands are not met. Security researchers have flagged the incident as 'pending verification,' indicating that the breach's authenticity is still under scrutiny. The incident highlights the risks associated with third-party SaaS providers as potential entry points for supply chain attacks. Organizations are advised to audit third-party integrations and monitor for unauthorized access attempts. No confirmed breaches of customer gaming accounts have been reported, and the incident primarily affects internal HR data. 19 sources 55

Extracted Entities

SHADOWBYT3$ Allegedly Claim Breach of Nintendo, Stealing Sensitive Data

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Extracted Entities

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