Bansley and Kiener LLP

Bansley and Kiener LLP, also known as Bansley & Kiener LLP, functions as an accountancy firm that delivers tax preparation, auditing, and financial advisory services to a diverse clientele that includes individuals, small businesses, and larger enterprises. The firm’s headquarters are situated in the United States, with its primary office located in Chicago, Illinois, positioning it to serve clients across the Midwest and beyond. As a limited liability partnership, the organization is owned and managed by its partner‑owners, who share in the profits and bear limited personal liability for the firm’s obligations. Its professional practice centers on helping clients meet federal and state tax obligations, prepare accurate financial statements, and navigate complex regulatory environments that govern accounting and financial reporting. The firm tailors its engagements to the specific needs of each client, offering customized solutions that range from routine bookkeeping to strategic tax planning and compliance consulting. By maintaining a focus on technical proficiency and responsive client service, Bansley and Kiener LLP seeks to establish lasting relationships built on trust and demonstrable expertise in the accounting profession.

The firm’s routine handling of sensitive personal data, such as names and Social Security numbers, subjects it to data protection expectations akin to those imposed on entities covered by HIPAA, although its primary regulatory oversight derives from accounting and tax authorities. In December 2020, Bansley and Kiener LLP experienced a ransomware attack that initially encrypted certain systems and caused operational disruption before services were restored using backups; a later investigation disclosed that the attackers had exfiltrated files containing confidential client information, affecting 70,941 individuals. Following the discovery of the data theft, the firm notified all affected parties, offered them complimentary credit monitoring and identity theft protection services, and implemented a series of enhanced security controls, including updated endpoint protection, network segmentation, and mandatory cybersecurity training for all employees. These actions reflect the firm’s commitment to mitigating the breach’s impact and strengthening its defenses against future threats. As an LLP, Bansley and Kiener LLP does not have a parent company or subsidiaries; its governance and decision‑making authority reside exclusively with the partner‑owners, who oversee both the delivery of professional services and the management of organizational risk.