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CyrusOne, LLC.

Claimed by Shinyhunters · listed 4 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedAug 23, 2026
  2. Data leakeddate unknown

At a glance

Group
Shinyhunters
Status
Data leaked
Country
United States
Sector
Technology
Listed on leak site
Aug 23, 2026

About the victim

AI dossier — public-source company profile

CyrusOne, LLC is a data center operator and infrastructure provider. The company operates critical computing facilities and manages client relationships through Salesforce and other enterprise systems.

Industry
Data Center Infrastructure & Cloud Computing

Attack summary

Severity: critical — Confirmed exfiltration of large-scale PII (8,300+ employees plus 182,000+ customer records), sensitive physical security infrastructure documentation (data center schematics, key logs, badge systems), credential artifacts (Okta lists, PasswordList.xlsx), and operational security policies at a critical infrastructure provider. The combination of employee/customer PII, physical security details, and active access credentials poses severe risk to the victim and potentially downstream clients.

ShinyHunters claims to have exfiltrated 12.9 million Salesforce records and 645 GB of uncompressed data including employee PII, customer contacts, contracts, data center physical documentation, security policies, and credential artifacts. The group threatened a $13 million demand before publishing data on 23 August 2026.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • 12.9 million Salesforce records
  • 182,000+ customer contact rows
  • 8,300+ employee PII records (names, emails, job titles, phone numbers)
  • Executed contracts, MSAs, NDAs, SOWs
  • Physical key inventory logs and verification photos
  • Data center floor plans and electrical/security schematics
  • Critical Environment Reliability Management process library
  • Physical and information security policies
  • Regional security scorecards and KPI workbooks
  • Okta SSO access lists and badge reports
  • Data center access control forms

What the group claims

Update 23 Aug : We are removing the clients name off this post. They are refusing to pay a $13 million demand. They have 24 hours left to engage with us. We hold 12.9 million Salesforce records along with: Sharepoint: (369.6 GB Compressed / 645 GB Uncompressed) 288,729 Files, 60,513 Folders - More than 182,000 rows of Customer data Extracted from the "Contacts" Salesforce Object. - Over 8,300 Rows of Employee PII (Full Name, Email, Job Title, Phone Number, ect.) - Thousands of executed contracts, MSAs, NDAs, amendments, leases, and SOWs - Extensive physical key inventory logs, verification photos, and contractor Green Badge audits - Large collection of data center drawings, floor plans, electrical one-line diagrams, security system drawings, and site schematics - Full CERM (Critical Environment Reliability Management) process library - Physical and information security policy suite plus governance materials - Regional security scorecards, KPI workbooks, GAM sheets, and signed performance packages - Credential and access-control artifacts (including PasswordList.xlsx, Okta SSC Access lists, active badge reports, and multiple Data Center Access Control forms) This is a final warning to reach out by end of day 24 Aug 2026 before we leak along with several annoying (digital) problems that'll come your way. Make the right decision, don't be the next headline. | Updated: 23 Aug 2026 | Warning: FINAL WARNING PAY OR LEAK

Source

Indexed 4 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 shinyhunters

Based on the limited publicly available information, shinyhunters appears to be a recently emerged ransomware group first observed in October 2025, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's origin and potential affiliations remain unclear due to their recent emergence, and there is insufficient public documentation to determine whether they operate as a Ransomware-as-a-Service model or as an independent entity. Their attack methodology and specific technical capabilities have not been extensively documented by major threat intelligence firms, though their targeting pattern suggests a broad opportunistic approach rather than sector-specific specialization. The group has reportedly victimized approximately 77 organizations, with primary targeting focused on the United States, France, Japan, Germany, and Australia, showing particular interest in consumer services, technology, financial services, transportation and logistics, and education sectors. Given the group's very recent emergence in late 2025, there are no widely reported major campaigns or high-profile incidents documented by established security research organizations, and no known law enforcement actions have been publicly reported against this group. The current operational status of shinyhunters remains active based on available reporting, though comprehensive threat intelligence profiles from major security firms like Mandiant, CrowdStrike, or government agencies have not yet been published due to the group's recent appearance in the threat landscape. The group has been linked to 157 public disclosures across our corpus. First observed on a leak site on October 3, 2025; most recent post August 23, 2026. The operation is currently active.

Timeline of this disclosure

  • August 23, 2026CyrusOne, LLC. listed by shinyhunterson the group's public leak site

Other recent disclosures by shinyhunters

shinyhunters has been linked to 157 public victims on Darkfield. A sample of the most recent:

See the full shinyhunters dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,573 disclosures indexed across all operators we track. Geographically, CyrusOne, LLC. is reported in United States, a country with 3,164 ransomware disclosures in our corpus.

If your organisation is affected

A listing by shinyhunters means CyrusOne, LLC. 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.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on shinyhunters'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.