The rhysida ransomware group listed BrownWinick on its data leak site on 2024-07-14. Sector: Professional Services Claim as published on the leak site: BrownWinick 1951, a tax-law specialty firm opened its doors in downtown Des Moines, Iowa. Its modest size hid lofty ambitions: to help its clients build on a strong foundation, and to put businesses from Iowa, the Midwest and around the country on a powerful footing for growth and competitive success.