HSR Specialist Researchers

HSR Specialist Researchers was compromised in a ransomware attack attributed to THEGENTLEMEN in December 2025. 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.