Teleos Systems
About the organisation
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.
What the listing means
Teleos Systems appeared on the thegentlemen leak site on 19 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Teleos Systems as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on teleosvet.co.uk, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Technology organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/VGVsZW9zIFN5c3RlbXNAdGhlZ2VudGxlbWVu