Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Ubon Ratchathani University

Claimed by Blacklock · listed 1 year ago

502 Employees
Records
$38.7M
Ransom
demanded
12m
Age
since listed · data leaked

Status timeline

  1. ListedJun 26, 2025
  2. Data leakeddate unknown

At a glance

Group
Blacklock
Status
Data leaked
Country
Thailand
Sector
Education
Listed on leak site
Jun 26, 2025
Records
502 Employees
Ransom demanded
$38.7M
Estimated revenue
$38.7M

About the victim

AI dossier — public-source company profile

Ubon Ratchathani University (UBU) is a public university in Thailand established in 1987 as a campus of Khon Kaen University and granted independent status in 1990. It serves approximately 502 employees and operates with an annual revenue of $38.7 million.

Industry
Higher Education
Address
Ubon Ratchathani, Thailand
Employees
502
Founded
1990

Attack summary

Severity: medium — University infrastructure and student/staff records are sensitive, but the leak post provides no concrete proof of data exfiltration, no specific data inventory, and no operational disruption claims. Classified as medium due to the institutional nature and claimed breach, tempered by absence of proof or detail.

BlackLock claims to have attacked Ubon Ratchathani University. The leak post does not specify whether data was exfiltrated, encrypted, or both, nor does it detail what data categories are at stake.

medium

What the group claims

Colleges & Universities Thailand 502 Employees Ubon Ratchathani University (UBU) (Thai, ) was established as a campus of Khon Kaen University, Thailand, in 1987. It gained independent university status in 1990. Revenue $38.7 Million

Sources

Source

Indexed 1 year 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About blacklock

Based on the limited publicly available information, Blacklock is an emerging ransomware group first observed in May 2025, operating with apparent financial motivations targeting organizations across multiple countries and sectors. The group's origin and potential affiliations remain unclear from documented sources, and there is insufficient public reporting to determine whether they operate as a Ransomware-as-a-Service model or as an independent entity. With 64 documented victims since their emergence, Blacklock has demonstrated a broad targeting approach across the United States, Canada, Spain, India, and the United Kingdom, with particular focus on technology, construction, manufacturing, and consumer services sectors, though their attack methodology, initial access vectors, and encryption tactics have not been extensively documented by major security research organizations. Due to the group's recent emergence and limited public reporting from established threat intelligence sources, notable campaigns and specific technical details of their operations remain largely undocumented in publicly available security research. As of current reporting, the group appears to remain active given their recent emergence date, though comprehensive analysis of their operational status requires additional documentation from established cybersecurity authorities. The group has been linked to 64 public disclosures across our corpus. First observed on a leak site on May 16, 2025; most recent post July 2, 2025. The operation is currently inactive.

Timeline of this disclosure

  • June 26, 2025Ubon Ratchathani University listed by blacklockon the group's public leak site
Records
502 Employees
Ransom demanded
$38.7M

Other recent disclosures by blacklock

blacklock has been linked to 64 public victims on Darkfield. A sample of the most recent:

See the full blacklock dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,082 disclosures indexed across all operators we track. Geographically, Ubon Ratchathani University is reported in Thailand, a country with 59 ransomware disclosures in our corpus.

If your organisation is affected

A listing by blacklock means Ubon Ratchathani University 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 blacklock'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.