{"id":108139,"date":"2026-08-28T15:57:27","date_gmt":"2026-08-28T06:57:27","guid":{"rendered":"https:\/\/japanir.jp\/en\/ir\/5909-20260828-01_wp_disclosure_update\/"},"modified":"2026-08-28T15:57:27","modified_gmt":"2026-08-28T06:57:27","slug":"5909-20260828-01_wp_disclosure_update","status":"publish","type":"ir_release","link":"https:\/\/japanir.jp\/en\/company\/company-5909\/ir\/5909-20260828-01_wp_disclosure_update\/","title":{"rendered":"We have confirmed that in our cloud service that manages construction information, there was unauthorized access from a third party and some of the information we hold may have been leaked."},"content":{"rendered":"<p>Personal information of up to 35,000 individuals may have been leaked due to unauthorized access to the cloud service. At this time, no unauthorized use has been confirmed. We are continuing to investigate the cause and identify the scope. The impact on earnings is under examination. Reported to the Personal Information Protection Commission.<\/p>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":{"Ticker":"","DATE":"","longName":"","company_name_ja":"","fullTimeEmployees":0,"address":"","phone":"","website":"","industry":"","sector":"","regularMarketPrice":0,"financialCurrency":"","marketCap":0,"fiftyTwoWeekLow":0,"fiftyTwoWeekHigh":0,"epsTrailingTwelveMonths":0,"epsForward":0,"bookValue":0,"totalRevenue":0,"OperatingIncome":0,"operatingMargins":0,"NetIncome":0,"profitMargins":0,"ebitda":0,"trailingPE":0,"forwardPE":0,"priceToBook":0,"returnOnEquity":0,"recommendationMean":0,"recommendationKey":"","targetMeanPrice":0,"numberOfAnalystOpinions":0,"analyst_earnings_data":"","dividendRate":0,"dividendYield":0,"payoutRatio":0,"totalEsg":0,"environmentScore":0,"socialScore":0,"governanceScore":0,"title":"","providerPublishTime":"","link":"","longBusinessSummary":"","longBusinessSummary_ja":"","quarterly_revenue":0,"quarterly_net_income":0,"quarterly_operating_profit":0,"enterprise_value":0,"price_fetched_at":"","company_officer_1_name":"","company_officer_1_title":"","company_officer_2_name":"","company_officer_2_title":"","company_officer_3_name":"","company_officer_3_title":"","company_officer_4_name":"","company_officer_4_title":"","company_officer_5_name":"","company_officer_5_title":"","company_officers_update_time":"","get_dividend_history_year1":0,"get_dividend_history_year2":0,"get_dividend_history_year3":0,"get_dividend_history_year4":0,"get_dividend_history_year5":0,"get_dividend_history_year6":0,"get_dividend_history_year7":0,"get_dividend_history_year8":0,"get_dividend_history_year9":0,"get_dividend_history_year10":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jir_stock_code":"5909","jir_company_name":"Corona Co., Ltd.","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-08-28","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/08\/5909-20260828-01.pdf","jir_short_summary":"Personal information of up to 35,000 individuals may have been leaked due to unauthorized access to the cloud service. At this time, no unauthorized use has been confirmed. We are continuing to investigate the cause and identify the scope. The impact on earnings is under examination. Reported to the Personal Information Protection Commission.","jir_summary":"### Section Heading\nThis matter is an announcement regarding unauthorized access to a cloud service, focusing on the range of potentially leaked personal information and the status of the investigation. No unauthorized use has been confirmed at this time, but the data affected may include customer names, addresses, and construction-related documents, potentially impacting up to 35,000 individuals. The company is collaborating with external experts to determine the cause and investigate intrusion paths, and all user accounts for the affected cloud service are being disabled and re-registered. If any new facts come to light, a further report will be provided. The impact on earnings is currently under examination, and will be disclosed as necessary information becomes available.\n\n### Section 2 Heading\nThe response emphasizes minimizing impact on customers and stakeholders. Specifically: 1) ongoing investigation into the cause and scope of damage; 2) disabling and re-registering all user accounts for the relevant cloud service; 3) reporting to the Personal Information Protection Commission; 4) policy for reporting any future new facts. Financial impact is not yet determined, and the company will disclose additional information as it becomes available.","jir_financial_highlights":"Impact on earnings: Unknown (Under investigation)","jir_category":"","jir_hashtags":"#Corona, #PersonalInformation, #DisclosureUpdate","jir_key_figures":"Up to 35,000 people\nDate of confirmation of unauthorized access: 2026-08-24 (mentioned as investigation start date)\nContact: privacy-contact@corona.co.jp (to be established on 2026-08-31)","jir_meta_title":"\u3010Corona Co., Ltd.\u3011Notice of potential personal information leakage due to cloud unauthorized access | August 2026","jir_meta_description":"Corona Co., Ltd. announces potential leakage of up to 35,000 personal information records due to unauthorized access to its cloud service. No unauthorized use has been confirmed at this time; investigation and scope identification are ongoing. Earnings impact is not yet determined, additional disclosure planned.","jir_og_title":"\u3010Corona\u3011 Notice of potential personal information leakage due to cloud unauthorized access","jir_og_description":"Unauthorized access to cloud service may have led to leakage of up to 35,000 personal information records. No unauthorized use confirmed at this time; investigation and scope identification ongoing. Earnings impact not yet determined.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":57401,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"disclosure_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-108139","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>We have confirmed that in our cloud service that manages construction information, there was unauthorized access from a third party and some of the information we hold may have been leaked. - Japan IR<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/japanir.jp\/en\/company\/company-5909\/ir\/5909-20260828-01_wp_disclosure_update\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-5909\/ir\/5909-20260828-01_wp_disclosure_update\/\",\"url\":\"https:\/\/japanir.jp\/en\/company\/company-5909\/ir\/5909-20260828-01_wp_disclosure_update\/\",\"name\":\"We have confirmed that in our cloud service that manages construction information, there was unauthorized access from a third party and some of the information we hold may have been leaked. - 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