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Nintendo Company (Nintendo.com)

Claimed by Shadowbyt3$ · listed 22 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedJun 12, 2026
  2. Data leakeddate unknown

At a glance

Group
Shadowbyt3$
Status
Data leaked
Country
Japan
Sector
Technology
Listed on leak site
Jun 12, 2026

About the victim

AI dossier — public-source company profile

Nintendo Company is a Japanese multinational video game and entertainment corporation headquartered in Kyoto, Japan. The company is one of the world's largest and most recognized video game manufacturers, known for iconic franchises including Super Mario, The Legend of Zelda, and Pokémon.

Industry
Video Games & Entertainment
Founded
1889

Attack summary

Severity: critical — Confirmed exfiltration of regulated PII at scale (employee full names, emails, financial records, W9 forms with IDs) combined with sensitive internal business data and communications. W9 forms and bank statements are particularly sensitive financial/tax records. Attack affects major public company with significant employee base.

shadowbyt3$ claims to have exfiltrated approximately 859 MB of data from Nintendo's TINYpulse employee engagement platform. The group claims to have stolen employee personal information, financial records, bank statements, W9 forms, analytics, surveys, and internal communications, demanding $2 million ransom.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Employee full names and emails
  • Bank statements and payment records
  • W9 tax forms with employee IDs
  • Employee engagement analytics and surveys
  • Internal communications and personal conversations
  • Performance reviews and progress plans
  • Top employee rankings and dashboards
  • Historical reports (2016-2026)

What the group claims

proof: https://mega.nz/folder/3kBzQKgR#rIhDePsPMeFpfEGTPopDVQ We are ShadowByt3$ a extortion as a service group. We stole close enough to 1gb. You have 48 hours to contact us nintendo or all data gets leaked. If you contact us we give you an extra day to think this through. We are demanding a ransom payment of 2 million dollars. Check your inbox if you work for nintendo and use TINYpulse or go login to tinypulse if the url in the leak looks familiar. You have 48 hours from this announcement then it gets leaked. You have till June 15 2026. size: 859.0MB Close enough to 1GB it contains the following: -full name first name, last name, email of employees -analytics - surveys - all reports exported - all bank statements of payment pdf and w9 forms with employee ids - all cheers exported - all wins dashboard and wall of wins exported - all progress plans exported - Reports from 2016 to up to date 2026 - Analytics of Employees contain conversations and personal feelings about work and more - Content library of personal questions and engagement analytics - TINYpulse and Nintendo top employees of Nintendo based on engagement

Sources

Source

Indexed 22 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About ShadowByt3$

ShadowByt3$ is an emerging ransomware group that was first observed in February 2026, appearing to be financially motivated based on its ransomware operations. The group's country of origin and any potential affiliations with other cybercriminal organizations remain unknown due to limited intelligence available on this newly identified threat actor. Given the minimal public documentation available, the group's attack methodology, tools, and operational tactics have not been sufficiently analyzed or reported by major cybersecurity firms or government agencies. No notable campaigns, high-profile victims, or significant ransoms have been publicly documented by CISA, FBI, Mandiant, or other reputable security researchers, with only one known victim reported to date and no specific sector targeting patterns identified. The current operational status of ShadowByt3$ remains unclear due to the limited intelligence available on this recently emerged and relatively unknown ransomware operation. The group has been linked to 12 public disclosures across our corpus. First observed on a leak site on February 25, 2026; most recent post June 12, 2026. The operation is currently active.

Timeline of this disclosure

  • June 12, 2026Nintendo Company (Nintendo.com) listed by ShadowByt3$on the group's public leak site

Other recent disclosures by ShadowByt3$

ShadowByt3$ has been linked to 12 public victims on Darkfield. A sample of the most recent:

See the full ShadowByt3$ dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,526 disclosures indexed across all operators we track. Geographically, Nintendo Company (Nintendo.com) is reported in Japan, a country with 88 ransomware disclosures in our corpus.

If your organisation is affected

A listing by ShadowByt3$ means Nintendo Company (Nintendo.com) appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on ShadowByt3$'s leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.