Teleos Systems
Attack Intelligence
Teleos Systems was compromised in a ransomware attack attributed to THEGENTLEMEN in April 2026. The organization, operating in an undisclosed sector in Unknown, was added to the group's data leak site as part of an extortion campaign.
THEGENTLEMEN operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.
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.