Ubon Ratchathani University
blacklock listed this organization on its leak site on Jun 26, 2025.
- Listing date
- Jun 26, 2025
- Attack date
- Jun 26, 2025
Listing text
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
About the group
blacklock posted its first listing on May 16, 2025 and has listed 64 organizations to date.
BlackLock is a rebranded version of another ransomware group known as Eldorado. It has since become one of the most active extortion syndicates in 2025, heavily targeting technology, manufacturing, construction, finance, and retail sectors.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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