JLK Rosenberger
Attack Intelligence
JLK Rosenberger was compromised in a ransomware attack attributed to INCRANSOM in January 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.
INCRANSOM 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.
JLK Rosenberger LLP, Certified Public Accountants: A full service accounting and business advisory firm with offices in Irvine and Glendale, California and Dallas, Texas. The firm is recognized as a Top 400 Firm by Inside Public Accounting and one of the largest auditors of insurance entities in the United States as ranked by Aon and AM Best We have 300GB of data. Internal mail, accounting, company customer information and we will publish all the information next week.