Summary
On June 14, 2026, the ransomware group shadowbyt3$ publicly claimed responsibility for a data breach affecting TinyPulse Nintendo (nintendo.com), a major player in the gaming industry in Japan. The group demands a ransom to avoid leaking sensitive employee data, including private chats and personal information.
Incident Report
| Field | Details |
|---|---|
| Target | TinyPulse Nintendo |
| Domain | nintendo.com |
| Country | Japan |
| Attacking Group | shadowbyt3$ |
| Date Reported | June 14, 2026 |
| Threat Actor Statement | “The breach has been confusing some people like they didn’t breach nintendo and all that, But are goal wasn’t beach nintendo directly but to steal some pii, operational plans, all private chats of employees. This Breach doesn’t affect nintendo gaming wise it only affects a small amount of employees that work for nintendo and have used tinypulse. Tinypulse you have till june 16th 2026 to contact us via telegram or email that we have sent you. Nintendo decided to not pay so we are demanding that tinypulse pays or all data will be leaked including private messages on nintendo employees and not all employees are happy we can tell you that. Private messages are about to not become private if tinypulse doesn’t reach an agreement with us. This is all we have to say about it no further questions. it’s simple if they don’t pay there leaked. This is just the file tree of all the data we stole so you can actually see that there are w9 forms with employee id’s.” |
Recommended Security Actions
Ransomware attacks are increasingly targeting both enterprise and mid-sized organizations across all sectors. The following steps are critical to reduce impact and prevent future incidents:
- Monitor continuously: Use DeXpose’s dark web and infostealer monitoring platform to detect breached credentials, leaked databases, and threat actor chatter in near real-time—before damage spreads internally.
- Conduct a compromise assessment: Immediately initiate a full incident review to determine how attackers infiltrated your network, what data may have been exfiltrated, and whether any persistence mechanisms remain active.
- Validate your backups: Ensure that your backups are current, encrypted, and stored offline. Utilize immutable backup solutions to defend against ransomware encryption and deletion attempts.
- Apply threat intelligence: Integrate external threat feeds, including DeXpose-provided indicators of compromise (IOCs), into your SIEM or XDR platforms for real-time alerting and correlation.
- Harden employee defenses: Run phishing simulations and enforce multi-factor authentication (MFA) across all access points. Attackers often exploit weak or reused credentials sourced from the dark web.
- Engage professional response teams: Involve cybersecurity incident response experts, threat analysts, and legal counsel before initiating any dialogue with ransomware groups or ransom brokers.
How DeXpose Helps You Stay Ahead
At DeXpose, we specialize in early detection and proactive defense. Our hybrid threat intelligence solution combines automated deep/dark web crawling, Telegram and forum monitoring, and real analyst verification to deliver:
- Continuous scanning of ransomware group leak sites, stolen credential markets, and malware log dumps
- Timely alerts for breaches linked to your domains, email addresses, and key personnel
- Intelligence correlation that connects leaked credentials to infostealer malware infections, often weeks before a public ransom demand
- Real-time visibility into supply chain and third-party exposures through passive surveillance of dark web channels
Don’t wait for public disclosure or ransom notices—gain visibility into your cyber exposure now.
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Disclaimer
DeXpose does not engage in the exfiltration, hosting, redistribution, or purchase of stolen data. All breach information reported here is collected from publicly accessible dark web sources and threat intelligence platforms.
Our mission is to equip organizations with early-warning indicators, contextual threat insights, and actionable intelligence that help them secure their digital assets against evolving cyber threats.
