Home › All Victims › Teleos Systems

Teleos Systems

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Teleos Systems. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

134days open
t1 · Published t2 · Pending
Apr 19, 2026Not disclosed yet
Country
United Kingdom
Business Category
IT
Employees
0-50
Discovered
2026-04-19
Published
April 19, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
3cmHwWAnryLO

Attack Summary

teleosvet.co.uk Teleos Systems Limited is a UK-based software company founded on 14 November 1997, headquartered in St. Neots, Cambridgeshire, and is the largest independent supplier of Veterinary Practice Management Systems (VPMS) in the UK and Ireland. The company has been developing and supporting its flagship veterinary management software for over 20 years, serving small independent practices as well as large multi-site veterinary groups.

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
Sign in or explore HaveIBeenRansom to view the full leak gallery.
View leak gallery →

Dark Web Exposure

Findings for teleosvet.co.uk — indexed by HaveIBeenRansom.
1
found in Infostealer logs
106+
found in Traditional breaches
0+
found in Ransomware leaks
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Untitled leak
— · breach
••• emails
Twitter Full DB.part01.rar
Database World ROC · breach
••• emails
LKnet reserve chat · breach
••• emails
Database World ROC · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
+ 9 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 12 sources.
Sign in Unlock with Enterprise →
Want the complete picture — passwords, machines, full leak files? It's all searchable on HaveIBeenRansom.
Search this victim →
Visit Website View Group: thegentlemen

Related entries

EP Manufacturing Bhd Saudi Consulting Services SAUD CONSULT Glassdoor G R Infraprojects Northwest Trophy General Gruppo
Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house only records what the operators themselves publish in the open. We take screenshots of their public pages and keep the proof material they post there, so that a listing can be verified and its status tracked over time. We do not purchase data, we do not solicit or encourage its publication, we do not access any private system, and we do not alter anything we record. Nothing is offered for download here, and detailed content is not published on this page or anywhere else on the public site: access to it is restricted to vetted customers under contract, for incident response, due diligence and cyber-resilience work. Breach.house is not affiliated with, and does not act on behalf of, the operators who publish this material. If you represent an organisation or individual named here and want a record reviewed or removed, contact us and we will act on it.