Unauthorized access to an external cloud service may have resulted in the potential leakage of personal data of up to 24,000 people. The cause is attributed to credential leakage and factors such as lack of multi-factor authentication and weak passwords. No unauthorized use has been confirmed at this time. Responses include disabling and resetting accounts, strengthened measures, enhanced monitoring, and employee training. Management believes the impact on financial results will be minor, but future disclosures should be monitored.<\/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 Corporation","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-10-22","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/10\/5909-20261022-02.pdf","jir_short_summary":"Unauthorized access to an external cloud service may have resulted in the potential leakage of personal data of up to 24,000 people. The cause is attributed to credential leakage and factors such as lack of multi-factor authentication and weak passwords. No unauthorized use has been confirmed at this time. Responses include disabling and resetting accounts, strengthened measures, enhanced monitoring, and employee training. Management believes the impact on financial results will be minor, but future disclosures should be monitored.","jir_summary":"### Overview of the Incident and Cause\nAround August 24, 2026, an investigation revealed a possible unauthorized access to a cloud service used by the Company. Credentials for specific accounts were leaked, and traces indicate that data was downloaded. At present, approximately 24,000 people are affected, and no unauthorized use of the information has been confirmed.\n\n### Response Status and Future Measures\nWe have disabled and reset all user accounts for the affected cloud service, suspended compromised accounts, and implemented password strengthening and multi-factor authentication. We are enhancing monitoring, enforcing thorough employee training, reviewing data that may have been exposed, and notifying affected individuals individually. If new disclosure matters arise, we will promptly announce them.","jir_financial_highlights":"Net Sales: Unknown (Unknown)","jir_category":"","jir_hashtags":"#CoronaCorporation, #CloudSecurity, #PersonalDataLeakResponse","jir_key_figures":"Approximate number of affected individuals: 24,000 people\nPotential data leakage: The information matches files stored on the external cloud service\nConfirmation status of unauthorized use of information: Unknown \u2192 No unauthorized use has been confirmed","jir_meta_title":"Corona Corporation \u2014 Update (Second Report) on Possible Personal Data Leak from Unauthorized Cloud Access | October 2026","jir_meta_description":"Corona Corporation reports the latest status regarding a possible personal data leak due to unauthorized access to a cloud service. Approximately 24,000 people may be affected; no unauthorized use has been confirmed to date. Describes response measures and future disclosure policy.","jir_og_title":"Corona Corporation \u2014 Second Report Updating on Possible Unauthorized Cloud Access","jir_og_description":"Latest information on a possible unauthorized access to a cloud service. Approximately 24,000 people affected; no unauthorized use confirmed at this time. Outlines response measures and future disclosure policy.","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-133433","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n