The Financial Supervisory Service (FSS) has recently started customized IT operation structure improvement consulting for financial companies experiencing frequent computer system failures. Raiana Non-Life Insurance was selected as the first target, and the FSS plans to conduct multi-faceted consultations on program control, failure prevention, and post-management systems. This consulting aims to find the root causes of computer system failures in the financial sector and focus on preventing recurrence. It is expected to be applied to banks, securities, and card industries in the future. Based on the consulting results, the FSS will support the establishment of improvement plans and contribute to strengthening IT security across the industry through CIO meetings. This is a measure taken as part of the FSS's shift from a post-sanction-centered supervisory approach to a preemptive prevention-oriented one.