Due to system disruption caused by a ransomware attack, Keio Corporation has applied for approval to extend the submission deadline for the 106th half-year report for the fiscal year ending March 2027 to December 16, 2026. The original deadline was November 16, 2026. Recovery work is underway. 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The original deadline was November 16, 2026. Recovery work is underway. The company will disclose promptly once approval is granted.","jir_summary":"### Overview\nKeio Corporation resolved to apply to the Kanto Local Finance Bureau for an extension of the submission deadline for the 106th half-year report for the fiscal year ending March 2027 because systems, including those used for financial closing operations, were halted by a ransomware attack that occurred on September 26, 2026. The extended submission deadline is planned to be December 16, 2026, and the company will disclose promptly once the application is approved. System recovery and the resumption of financial closing operations are currently in progress, but there have been delays in the interim review procedures by the accounting auditor.\n\n### Impact and Outlook\nIf this application is approved, the formal extension of the submission deadline will be confirmed. To avoid confusion among shareholders and stakeholders, the company plans to promptly announce the approval result and the revised submission schedule. The timing for publication of major financial indicators related to the financial results is TBD, and numerical information is currently unknown.","jir_financial_highlights":"Unknown: Unknown (Unknown)","jir_category":"","jir_hashtags":"#KeioCorporation, #HalfYearReportExtension, #DisclosureUpdate","jir_key_figures":"Extended submission deadline: 2026-12-16 (original deadline before extension: 2026-11-16)\nCause: System disruption due to a ransomware attack\nScope of impact: Suspension of financial closing operations including accounting-related work and delays in audit procedures","jir_meta_title":"Keio Corporation Files Application to Extend Half-Year Report Submission Deadline\uff5cNovember 10, 2026","jir_meta_description":"Keio Corporation has submitted an application to the Kanto Local Finance Bureau to extend the submission deadline for its half-year report due to system disruption caused by a ransomware attack. The company will disclose the approval timing and the new submission date once determined. Summary of current impact and recovery status.","jir_og_title":"Keio Corporation Files Application to Extend Half-Year Report Submission Deadline\uff5cNovember 10, 2026","jir_og_description":"Financial closing operations delayed due to a ransomware attack. The company will promptly announce the approval result and the new submission date once decided.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":7894,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"disclosure_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-147330","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n