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 108 public disclosures across our corpus. First observed on a leak site on October 3, 2025; most recent post May 12, 2026. The operation is currently active.

Timeline of this disclosure

April 24, 2026Udemy, Inc. (udemy.com) listed by shinyhunterson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 694 disclosures indexed across all operators we track. Geographically, Udemy, Inc. (udemy.com) is reported in US, a country with 2,713 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Udemy, Inc. (udemy.com)

Claimed by shinyhunters · listed 27 days ago

26d

Age

since listed · data leaked

Status timeline

Listed
Apr 24, 2026
Data leaked

At a glance

Group: shinyhunters
Status: Data leaked
Country: US
Sector: Education
Listed on leak site: Apr 24, 2026

About the victim

AI dossier — public-source company profile

Udemy, Inc. is a US-based online learning platform headquartered in San Francisco, California, offering a marketplace of video courses across technology, business, and creative disciplines. The platform hosts tens of millions of learners and hundreds of thousands of instructors globally. It is one of the largest for-profit e-learning platforms in the world.

Industry: Online Learning & Education Technology
Address: 600 Harrison Street, Suite 200, San Francisco, CA 94107, USA
Employees: 1001-5000
Founded: 2010

Attack summary

Severity: high — Claimed exfiltration of 1.4 million PII-containing records from a large consumer-facing platform constitutes significant data exposure at scale; however, no proof files have been published yet and the disclosure status is a ransom threat rather than confirmed full leak, keeping it at high rather than critical pending verification.

ShinyHunters claims to have exfiltrated over 1.4 million records containing PII and internal corporate data from Udemy, and is issuing a final ransom demand with a deadline of 27 April 2026, threatening to publish the data if payment is not received.

high

Data the group says was taken

AI dossier — extracted from the leak post

Personally identifiable information (PII)
Internal corporate data
User records (1.4M+)

What the group claims

Over 1.4M records containing PII and other internal corporate data have been compromised. Pay or Leak. This is a final warning to reach out by 27 Apr 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: 24 Apr 2026 | Warning: FINAL WARNING PAY OR LEAK

Sources

Victim siteudemy.com

Source

Indexed 27 days 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.