Terry P Moosmann CPA PC
Attack Intelligence
Terry P Moosmann CPA PC was compromised in a ransomware attack attributed to THEGENTLEMEN in July 2026. The organization, operating in the Financial Services sector in United States, 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.
Terry P. Moosmann CPA PC is a local accounting and tax preparation firm based in Washington, Missouri. Owned by Terry Moosmann, the company provides professional financial, accounting, and tax services tailored to individuals and small businesses in the surrounding communities. The firm is recognized for its personalized approach and long-standing presence in the local business community